35 single-best-answer MCQs — recognition · discriminator · trap type · future alert. Click an option to grade yourself.
DERMATOLOGY
Q1
A 35-year-old HIV-positive man presents with multiple painless, dark purplish-violaceous plaques on his trunk and arms. Lesions appeared over several months. CD4 count is 180/µL. Most likely diagnosis?
DiscriminatorPainless violaceous plaques + AIDS + CD4 <200 = Kaposi. The violaceous colour is the whole clue.
Not the answerBacillary angiomatosis is also AIDS-related but forms red-purple nodules/pyogenic-granuloma-like vascular lesions — nodular, not plaques. Dermatofibroma = benign firm flesh-coloured nodule on a leg, healthy patients. Seborrhoeic keratosis = stuck-on brown plaque, elderly.
Trap typeAppearance-confusion trap — same colour, different morphology.
Future alertViolaceous + AIDS → Kaposi. Every sitting. Do not re-read.
Source[RECALL] Jun 2024 had the same stem; repeated Dec 2025
Q2
A 30-year-old man presents with well-demarcated erythematous plaques covered with silvery-white scales on the extensor surfaces of his elbows and knees. Scalp is also involved. Nail pitting is noted. Most likely diagnosis?
DiscriminatorExtensor + silvery scale + nail pitting = psoriasis. Nail pitting is the clincher.
Not the answerAtopic dermatitis = flexural, atopic history. Tinea = annular with central clearing, active scaly edge, not silvery and not symmetric. Pityriasis versicolor = hypopigmented confetti-like patches on trunk.
Trap typePaired-confuse — the exam's #1 dermatology trap.
Source[RECALL] Dec 2024 Q169 tested the same pattern
Q3
A 22-year-old female student has itchy, erythematous lesions in the flexural areas of her elbows and knees. She has a family history of asthma and allergic rhinitis. Which is the single most likely diagnosis?
TaskAnalysis (the flip side of the psoriasis pair)
DiscriminatorFlexural + personal/family atopy = atopic dermatitis. Location plus atopy is the two-feature requirement.
Not the answerPsoriasis = extensor + silvery, no atopy link. Contact dermatitis = exposure history (jewellery, nickel), localised to contact zone, no atopy. Seborrhoeic = scalp/face/retroauricular, greasy yellow scales.
Trap typeLocation inversion — the trap flips the site.
A 10-year-old child presents with circular, scaly lesions with central clearing on the trunk. Lesions are mildly itchy and the margins are raised and active. Which investigation confirms the diagnosis?
ConceptTinea corporis — dermatophyte infection of the trunk.
TaskAnalysis (diagnosis + confirmation)
DiscriminatorAnnular + central clearing + raised active scaly margin = dermatophyte. KOH shows septate branching hyphae.
Not the answerTzanck smear = herpes (multinucleated giant cells), not fungus. Gram stain = bacterial (impetigo/cellulitis). Patch test = contact dermatitis, delayed type IV reading.
Trap typeModality-confusion — picking the test that belongs to the mimic.
Future alertAnnular + central clearing → tinea, never psoriasis or atopic.
Source[RECALL] May 2026 Q126 tested the recognition stem
Q5
A pregnant woman at 28 weeks gestation presents with severe itching of the hands that worsens at night, with burrow-like lesions in the finger webs and on the wrists. Which is the most appropriate treatment?
DiscriminatorBurrows in finger webs + nocturnal itch = scabies. First-line is permethrin, applied to the whole body below the neck overnight, repeated at day 7.
Not the answerIvermectin is second-line/reserve and is avoided in pregnancy. Hydrocortisone alone treats the inflammation, not the mite — it produces the steroid paradox (worse itch, atypical distribution). Antihistamines only sedate the itch, killing nothing.
Trap typeDefinitive-therapy trap — symptomatic relief offered instead of the mite killer.
Source[RECALL] Jun 2024 Q97 and Jun 2025 Q88 both tested this exact stem
Q6
A 55-year-old man presents with a painful vesicular rash in a dermatomal distribution over the right posterior thorax. The rash did not cross the midline. He reports pain preceding the rash by 3 days. Which virus lies dormant in the dorsal root ganglion?
ConceptHerpes zoster — VZV reactivation in sensory ganglia.
TaskRecall layered on recognition
DiscriminatorUnilateral dermatomal vesicles + prodromal pain + no midline crossing = zoster. Latent virus = VZV in the dorsal root ganglion.
Not the answerHSV-1 = oral/genital mucocutaneous ulcers, not dermatomal. HPV = warts/molluscum-like lesions. EBV = mononucleosis/lymphoma, no vesicular dermatomal rash.
Trap typeLatency-location trap — asking which ganglion, not which virus.
A 28-year-old man develops a generalised maculopapular rash with fever and eosinophilia 10 days after starting amoxicillin for a urinary tract infection. The rash is confluent and blanches on pressure. Which is the most likely diagnosis?
ConceptMorbilliform drug exanthem — the commonest drug rash.
TaskInterpretation + timing discriminator
DiscriminatorDelayed 7–14 days after an antibiotic + maculopapular + eosinophilia + intact mucosa = morbilliform drug eruption.
Not the answerSJS/TEN has mucosal erosions, bullae and epidermal detachment — this patient has none. AGEP shows sterile pustules on a feverish ill patient, not a maculopapular rash. Erythema multiforme classically follows HSV and gives target lesions with acral predilection.
Trap typeSeverity-inflation trap — benign drug rash dressed up as SJS.
Future alertMaculopapular + eosinophilia + intact mucosa = benign drug rash. Mucosa involved = SJS. That is the whole split.
Source[RECALL] May 2026 Q75 tested this
Q8
A 27-year-old fair-skinned woman has a pigmented lesion on her back that has increased in size, changed shape and become darker over 3 months. Dermoscopy shows asymmetry, irregular borders and multiple colours. Which is the most likely diagnosis?
DiscriminatorEvolution (E) of a pigmented lesion + asymmetry + irregular border + colour variation = melanoma. Change over time is the strongest single predictor.
Not the answerBCC = pearly, telangiectatic, ulcerated nodule, sun-exposed, slow. SCC = keratotic, scaly, firm nodule on sun-damaged skin. Dysplastic naevus is stable — the changing element is what excludes it.
Trap typeStability trap — dysplastic naevus and melanoma look alike until you notice change.
Future alertPigmented lesion that is CHANGING = melanoma until proven otherwise. Bates says D and E.
SourceMatches your Prediction 2026 Pathology Q18 (ABCD on changing mole)
Q9
A 26-year-old woman presents with a raised, firm, red-brown lesion at the site of a surgical incision made 5 months ago. The lesion has extended beyond the original wound margins. It is itchy and enlarging. Most likely diagnosis?
DiscriminatorExtends beyond the original wound + does not spontaneously regress + common in dark skin = keloid.
Not the answerHypertrophic scar also fits but stays within the wound margins and regresses over time — that is the single separating feature. Dermatofibroma = dimples on lateral pressure (Fitzpatrick sign), unrelated to trauma. Lipoma = soft, mobile, subcutaneous, non-pigmented.
Trap typeKeloid-vs-hypertrophic — the boundary question is the entire exam point.
Future alertBeyond the margins = keloid. Within margins + regresses = hypertrophic. Commonest at earlobe and presternal.
Source[RECALL] Dec 2025 Q78 tested the pruritic post-excision lesion
Q10
An 8-year-old child has flaccid bullae with erosions involving the mouth and skin, which rupture easily leaving raw areas. Nikolsky sign is positive. Histology shows suprabasal acantholysis with a 'row of tombstones'. Most likely diagnosis?
Not the answerPemphigoid = tense bullae, subepidermal, Nikolsky negative, elderly, mucosa usually spared, better prognosis (bullous pemphigoid = BP180/BP230, hemidesmosome). Impetigo = superficial flaccid bullae but no acantholysis and responds to antibiotics. Linear IgA = annular 'string of beads' bullae, DIF linear IgA.
Trap typeTense-vs-flaccid inversion — the classic pemphigus/pemphigoid flip.
Future alertFlaccid + mucosa + Nikolsky+ = pemphigus. Tense + no mucosa + Nikolsky− = pemphigoid. Learn the pair as one item.
SourceYour Derm_Cheatsheet already carries this comparison — this is the drill on it
Q11
A 40-year-old man from rural Sindh presents with a shallow ulcer with a raised, rolled, undermined border on his exposed leg, acquired after sleeping outdoors. The lesion has not healed after 3 months. Most likely diagnosis?
ConceptCutaneous leishmaniasis — sandfly vector, endemic in Pakistan.
TaskRecognition
DiscriminatorUlcer with rolled border + sandfly exposure + endemic region + chronic non-healing = cutaneous leishmaniasis.
Not the answerAnthrax = malignant pustule, painless black eschar with marked surrounding oedema and acute systemic toxicity. TB verrucosa cutis = verrucous plaque, warty, not a punched-out ulcer. SCC = everted, friable, bleeds easily, older/sun-damaged patient.
Trap typeGeographic/endemic trap — the exposure history is the discriminator.
SourcePakistan-weighted; your Derm cheatsheet flags it as high-yield
Q12
A 35-year-old man has a well-defined, hypopigmented, scaly plaque on the trunk with a 'spider web' pattern on Wood's lamp examination. Most likely causative organism?
DiscriminatorWood's lamp 'copper pennies'/spider-web fluorescence + hypopigmented scaly trunk patches = pityriasis versicolor due to Malassezia furfur.
Not the answerMicrosporum = tinea capitis, scalp/hair, green fluorescence. Candida = intertrigo with satellite pustules. T. mentagrophytes = inflammatory tinea corporis with raised keratotic border.
Trap typeOrganism–Wood's-lamp pairing — know which fungus fluoresces.
An elderly diabetic man has a 2.5 cm tender, fluctuant, erythematous swelling on the nape with fever and poorly controlled blood sugar. The lesion consists of multiple interconnected pustules draining through several openings. Most likely diagnosis?
ConceptCarbuncle — multi-headed furuncle over a nidus, diabetic patients.
Not the answerFuruncle = single deep follicular infection, one drainage point. Cellulitis = diffuse, poorly demarcated, spreading erythema with no fluctuant collection. Hidradenitis = recurrent nodules/abscesses in apocrine areas (axilla, groin), with sinus tracts and scarring, chronic.
Trap typeMorphology-count trap — one opening vs many separates furuncle from carbuncle.
Future alertDiabetic + nape + multiple sinuses = carbuncle. Excise and drain; antibiotics alone will fail.
Source[RECALL] Dec 2025 Q71 tested this
Q14
A malnourished adult whose diet consists mainly of maize presents with diarrhoea, dermatitis around the neck and wrists, and cognitive changes. Which nutrient is deficient?
Trap typeVitamin-character confusion — all three B-vitamins cause skin findings.
Future alertCasal necklace + maize = niacin. Dermatitis + dementia + diarrhoea, not the neuropathy of B1/B6.
Source[RECALL] May 2026 Q135 tested pellagra; also your Batch1 Q47
Q15
A 30-year-old woman has well-defined depigmented macules on the fingers, around the mouth and over the knuckles, with no scaling and no preceding inflammation. Hair may become white. Most likely diagnosis?
ConceptVitiligo — autoimmune melanocyte destruction, acral and periorificial.
TaskInterpretation
DiscriminatorAcral + periorificial + fully depigmented + NO scale + no preceding inflammation = vitiligo. Poliosis (white hair) supports it.
Not the answerPityriasis alba = children, ill-defined pale patches with fine scale, post-inflammatory. Tinea versicolor = hypopigmented but scaly, KOH+, fluorescence. Post-inflammatory = history of preceding inflammation, ill-defined.
Trap typeScale-absence trap — vitiligo is the only one with genuinely no scale.
Future alertDepigmented + acral/periorificial + zero scale + white hair = vitiligo. Vitiligo is sharply demarcated, always.
A 6-year-old has honey-coloured crusted erosions around the nostrils and mouth, with small superficial flaccid blisters that rupture. Low-grade fever is present. No systemic toxicity. Most likely diagnosis and treatment?
ConceptNon-bullous and bullous impetigo — S. aureus / S. pyogenes.
TaskManagement
DiscriminatorHoney-coloured crust + superficial flaccid bullae + child + well systemically = impetigo. Bullous form = staphylococcal exfoliative toxin.
Trap typeDepth trap — superficial crusting vs deeper spreading infection.
Future alertHoney-coloured crust in a child = impetigo. Most common skin infection of childhood. Mupirocin if localised.
SourceYour Derm cheatsheet: 'Impetigo — most common skin infection in children'
ENT
Q17
A 4-year-old girl is brought in with a painful right ear, irritability, cough and a temperature of 38.8°C. On otoscopy the tympanic membrane is red and bulging with loss of the light reflex. Which organism is the most common cause?
ConceptAcute otitis media — bulging TM, loss of light reflex, fever, otalgia.
TaskInterpretation + organism recall
DiscriminatorBulging red TM + loss of light reflex + fever in a child = AOM. Streptococcus pneumoniae is the single most common cause.
Not the answerPseudomonas = otitis externa and malignant otitis externa in diabetics. S. aureus = furuncle of the external canal, post-surgical. Moraxella = second/third most common, and a typical cause of antibiotic-resistant AOM.
Trap typeAOM-vs-externa trap — Pseudomonas is the classic wrong answer here.
Future alertBulging TM = AOM = pneumococcus = amoxicillin. Red TM with normal contour = otitis externa = ofloxacin.
Source[RECALL] Dec 2024 Q64 and Dec 2025 Q128 tested identical stems — repeat confirmed
Q18
A 45-year-old swimmer presents with severe ear pain and a foul, blood-stained discharge. The ear canal is inflamed and swollen. Tragal movement causes pain. The tympanic membrane is otherwise intact. Most likely organism and treatment?
DiscriminatorPainful canal + foul blood-stained discharge + water exposure + INTACT TM = otitis externa. Pseudomonas aeruginosa is most common; treat with topical ofloxacin and canal cleaning.
Not the answerAmoxicillin targets the middle ear, and the TM here is intact — the disease is in the canal. Candida = otomycosis, black debris with more itching than pain, after prolonged antibiotic drops. VZV = Ramsay Hunt, which needs facial palsy + vesicles in the concha, absent here.
Trap typeSite trap — canal vs middle ear changes the drug route completely.
Future alertPain on tragal movement + intact TM = externa = topical ofloxacin. Malignant externa = diabetic + granulation + skull-base osteomyelitis → urgent IV anti-pseudomonal.
SourceENT cheatsheet Block 1 table
Q19
A 20-year-old man with known otitis media presents with severe headache, photophobia, neck stiffness and fever. Which is the most important next step?
ConceptAOM complicated by meningitis — a life-threatening ENT emergency.
TaskManagement sequence
DiscriminatorFever + headache + photophobia + neck stiffness on a background of otitis media = meningitis. Image first, then immediate IV third-generation cephalosporin. Do not wait for the CT to give antibiotics if there is no contraindication.
Not the answerEscalating oral amoxicillin is wrong — this is a systemic, life-threatening infection. Myringotomy alone treats the ear, not the meninges. Tympanostomy plus discharge is dangerous.
Trap typeFirst-step trap — the exam asks for stabilisation and the correct antibiotic, not the ENT procedure.
Future alertEar pain + meningism = meningitis. IV ceftriaxone/cefotaxime, don't delay for imaging.
Source[RECALL] Dec 2024 Q62 and May 2026 Q52 both tested this
Q20
A 45-year-old man has severe episodes of dizziness with vomiting and right-sided ear pain, occurring in bursts lasting minutes to hours, with fluctuating hearing loss and tinnitus. Which is the most likely diagnosis?
DiscriminatorEpisodic vertigo lasting minutes-hours + fluctuating SNHL + tinnitus + ear fullness = Ménière's. Endolymphatic hydrops in the inner ear.
Not the answerBPPV = brief seconds-long positional vertigo with Dix-Hallpike positive, no hearing loss. Labyrinthitis = continuous vertigo after a viral URTI with hearing loss and nystagmus toward the unaffected ear. Schwannoma = progressive unilateral SNHL, no vertigo episodes, cerebellopontine angle.
Trap typeDuration trap — seconds (BPPV) vs minutes-hours (Ménière) vs continuous (labyrinthitis).
Future alertVertigo duration is the discriminator. Seconds = BPPV/Epley. Minutes-hours + SNHL = Ménière. Continuous post-URTI = labyrinthitis.
Source[RECALL] Dec 2024 Q51 and Dec 2025 Q120 both tested Ménière vs BPPV
Q21
A patient has regular episodes of sudden sensorineural hearing loss, tinnitus, ataxia and vertigo lasting more than 30 minutes. Dix-Hallpike is negative. Neurological examination is normal between episodes. Most likely diagnosis?
ConceptTransient ischaemic attack — cochlear/vestibular stroke territory.
TaskAnalysis (recognising the vascular mimic)
DiscriminatorNegative Dix-Hallpike + SNHL + ataxia + episodes >30 minutes = cochleovestibular TIA. A posterior-circulation TIA is the must-not-miss diagnosis.
Not the answerMénière's is the near neighbour but typically has progressing unilateral hearing loss and tinnitus, not transient resolution with normal neuro exam between episodes. Labyrinthitis follows a viral prodrome. BPPV is positional and brief.
Trap typeDangerous-mimic trap — Ménière's and TIA look alike; duration and reversibility split them.
Future alertVertigo + SNHL + ataxia + normal between episodes = TIA until proven otherwise. Don't let Ménière's swallow it.
Source[RECALL] Dec 2025 Q120 tested exactly this stem
Q22
A 4-year-old boy has 1-day fever, severe sore throat, drooling and difficulty swallowing. He sits leaning forward in the 'tripod position' and has a muffled 'hot potato' voice but no cough. Which is the most appropriate management?
ConceptAcute epiglottitis — H. influenzae type b, airway emergency.
TaskManagement sequence (airway first)
DiscriminatorDrooling + tripod + hot-potato voice + absence of cough + no laryngeal stridor = epiglottitis. Sit him up and secure the airway first, then IV ceftriaxone.
Not the answerTongue-depressor examination is contraindicated — it can precipitate complete airway obstruction; this is the classic lethal trap. Lying him supine is equally dangerous. Steam + oral antibiotics is croup management and too slow here.
Trap typeThe lethal trap — the instinctive move (look in the throat) kills the patient.
Future alertDrooling + tripod + no cough = epiglottitis. NEVER depress the tongue. Keep upright, secure airway, IV ceftriaxone.
Source[RECALL] Dec 2025 Q100 tested this; croup comparison in your architecture brief
Q23
A 5-month-old infant has a barking cough, inspiratory stridor and low-grade fever, worse at night. On inspection there is bilateral expiratory wheeze and a steeple sign on neck X-ray. Which organism is most likely?
DiscriminatorBarking cough + inspiratory stridor + steeple sign + age 6 months–3 years = croup. Most commonly parainfluenza.
Not the answerRSV = bronchiolitis in under-2s, wheeze and poor feeding, no stridor/steeple sign. Hib = epiglottitis (drooling, tripod, no cough). Pertussis = paroxysmal cough with whoop and post-tussive vomiting, not stridor.
Trap typeCroup-vs-bronchiolitis trap — stridor + steeple sign vs pure wheeze.
SourceENT cheatsheet + your May 2026 architecture brief (Pattern A example)
Q24
A 16-month-old child suddenly develops noisy breathing and a cough while playing on the floor. He is afebrile. On examination there is unilateral wheeze with reduced air entry on one side. What is the most likely diagnosis?
ConceptForeign body aspiration — sudden onset, unilateral findings, child.
TaskRecognition (classic presentation)
DiscriminatorSudden onset while playing + unilateral wheeze + asymmetric air entry + no fever = aspirated foreign body. Nuts and seeds are the usual culprits; the right main bronchus is the commonest site.
Not the answerBronchiolitis = bilateral, fever, young infant. Croup = barking cough + stridor + steeple sign. Asthma = bilateral wheeze with recurrent history and trigger.
Trap typeLaterality trap — bilateral wheeze = asthma/viral; unilateral = foreign body until proven otherwise.
Future alertSudden + unilateral + afebrile = aspirated foreign body. Rigid bronchoscopy is definitive; do not rely on a normal CXR.
Source[RECALL] May 2026 Q6 tested this exact stem
Q25
A 6-year-old child presents with foul-smelling unilateral nasal discharge and unilateral nasal obstruction for 3 months. There is no history of trauma. On examination the discharge is bloody and unilateral and a mass is seen in the nasal cavity. Which is the most likely diagnosis?
DiscriminatorAdolescent male + recurrent unilateral epistaxis + a nasal cavity mass = juvenile nasopharyngeal angiofibroma. Originates from the sphenopalatine foramen region.
Not the answerNasal polyps = pale, smooth, insensitive, usually bilateral and not associated with bleeding; rare before age 10. Antrochoanal polyp = single, arises from maxillary antrum, exits through the choana, child with unilateral discharge. Allergic rhinitis = bilateral, watery, itchy, sneezing.
Trap typeLaterality + bleeding trap — polyps are typically bilateral and non-bloody.
Future alertTeenage boy + unilateral bloody discharge + nasal mass = JNA. Biopsy is contraindicated — profuse haemorrhage. Diagnose by CT/MRI, treat by embolisation + surgery.
Source[RECALL] May 2026 Q105 tested this; 'angiofibroma sign' in your Dec 2025 report
Q26
A 14-year-old boy has scanty purulent ear discharge over the past few years and now develops severe post-auricular pain with mastoid tenderness and fever. Which complication has occurred?
ConceptUnsafe (attico-antral) CSOM with cholesteatoma → mastoiditis.
Not the answerOtitis externa is canal disease with an intact TM and no mastoid tenderness. Otosclerosis = progressive conductive hearing loss in a young adult with a normal TM and no discharge.
Trap typeSafe-vs-unsafe CSOM trap — the fatal complications sit only on the unsafe side.
Future alertAttic/marginal perforation + cholesteatoma + bone erosion = unsafe = surgery. Central perforation + mucoid discharge = safe = aural toilet. Cholesteatoma can erode the lateral semicircular canal (vertigo) and facial nerve (palsy).
SourceENT cheatsheet CSOM table
Q27
A 17-year-old girl has bilateral nasal obstruction, recurrent epistaxis and a persistent cough. On examination the nasal cavity contains a smooth, pale, non-tender mass. She has never had surgery. Which is the most appropriate next step?
ConceptPre-biopsy imaging is mandatory before any nasal mass is sampled.
TaskManagement sequence (safety-first)
DiscriminatorBilateral obstruction + epistaxis + a nasal mass in a young patient — you must image before biopsy. Any vascular lesion (classically JNA) makes biopsy catastrophic.
Not the answerDirect excision without imaging risks catastrophic haemorrhage. Biopsy is potentially lethal in JNA. Empirical steroids delay the diagnosis in a lesion that may be malignant.
Trap typeThe safety trap — the exam rewards not doing the obvious procedure.
Future alertNasal mass + epistaxis → CT/MRI FIRST. Never biopsy a vascular nasal mass.
Source[RECALL] Dec 2024 Q48 tested the JNA recognition stem
Q28
A patient has had a right-sided conductive hearing loss for 3 weeks after being struck on the ear. Otoscopy shows a perforation of the tympanic membrane with blood-stained discharge. Which structure is most likely injured?
ConceptTraumatic tympanic membrane perforation.
TaskInterpretation + anatomy
DiscriminatorTrauma + acute conductive loss + visible membrane perforation = tympanic membrane perforation. Most heal spontaneously in weeks; paper patch promotes healing if >50%.
Not the answerMalleus/stapes injury would not be visible as a membrane perforation. Chorda tympani injury (middle-ear surgery or temporal bone fracture) causes altered taste on the anterior two-thirds of the tongue, not conductive loss.
Trap typeStructure-spotting trap — the perforation is the sign, the membrane is the structure.
Future alertTrauma + conductive loss + perforation = TM perforation. Red flag: CSF otorrhea or vertigo after head injury = temporal bone fracture → CT, no nasal instrumentation.
Source[RECALL] May 2026 Q47 tested cricket-ball to ear
Q29
A 45-year-old woman has a tender lump below the jaw that swells during eating and is painful at mealtimes. There is no fever. Which is the most likely diagnosis?
ConceptSubmandibular (Wharton's duct) sialolithiasis — stone at mealtimes.
TaskRecognition (meal-linked swelling)
DiscriminatorSwelling below the jaw that appears and hurts with eating = salivary stone. The submandibular gland is the second most common site after parotid, and the most common site in children.
Not the answerPleomorphic adenoma = painless, slow-growing, mobile parotid mass, usually middle-aged, no mealtime link. Warthin = older male, smoker, bilateral possible, cystic, pain usually absent. Buccal space abscess = fever, trismus, intraoral swelling, constant not meal-linked.
Trap typeMeal-linked vs not — the single cleanest ENT discriminator in the head/neck block.
Future alertSwelling with meals = sialolithiasis. Submandibular stone → diet and gland massage/duct expression, excise the gland if recurrent.
Source[RECALL] May 2026 Q37 tested this exact stem
Q30
A patient presents with complete facial paralysis on one side, severe otalgia, and herpetic vesicles in the concha of the ear canal. Which ganglion is involved?
ConceptRamsay Hunt syndrome — VZV in the geniculate ganglion.
TaskAnalysis (syndrome localisation)
DiscriminatorFacial nerve palsy + vesicles in the concha/external canal + otalgia = Ramsay Hunt syndrome. VZV lies in the geniculate ganglion of the facial nerve.
Not the answerTrigeminal = VZV of the ophthalmic division gives zoster ophthalmicus, a vesicular rash in the V1 dermatome. Pterygopalatine = postganglionic parasympathetic, no vesicles. Superior cervical = Horner syndrome (ptosis, miosis, anhidrosis).
Trap typeSyndrome-localisation trap — the vesicle location names the ganglion.
Future alertFacial palsy + ear vesicles = Ramsay Hunt = geniculate ganglion = VZV. Treat with acyclovir + steroid within 72 hours for best nerve recovery.
SourceENT cheatsheet Block 1 table
Q31
A patient has Rinne negative on the right and on Weber's test sound lateralises to the right ear. Which is the most likely lesion?
ConceptTuning-fork test interpretation — conductive vs sensorineural.
TaskAnalysis (bedside test reasoning)
DiscriminatorRinne negative (BC > AC) + Weber lateralises to the AFFECTED ear = conductive hearing loss on that side. Weber lateralises to the better ear in SNHL and to the worse ear in conductive.
Not the answerRight SNHL would give Rinne positive and Weber lateralising to the left/healthy ear — the exact opposite pattern. Bilateral SNHL gives Rinne positive both sides with Weber central.
Trap typeWeber-lateralisation trap — most students get the Weber direction backwards.
Future alertConductive → Weber to the bad ear. SNHL → Weber to the good ear. Rinne negative = conductive. Rinne positive-but-reduced = SNHL.
SourceENT cheatsheet hearing-loss table
Q32
A 45-year-old woman has persistent dysphonia over 8 months. She is a primary school teacher. Laryngoscopy shows bilateral swellings at the junction of the anterior one-third and posterior two-thirds of the vocal cords, moving with phonation. Most likely diagnosis?
DiscriminatorBilateral symmetric lesions at the anterior 1/3–posterior 2/3 junction in a voice user = vocal cord nodules. Caused by phonotrauma/voice abuse.
Not the answerCarcinoma = unilateral, irregular, asymmetric, usually in an older smoker, with weight loss. Paralysis = immobile cord in the paramedian position, from recurrent laryngeal nerve injury. Contact granuloma = unilateral posterior laryngeal lesion from reflux/intubation.
Future alertTeacher + bilateral anterior-1/3 junction swellings = nodules = voice rest + speech therapy. Botulinum toxin is the option in your report — reserved for refractory cases.
Source[RECALL] your Prediction 2026 ENT explanation sheet Q187
Q33
A 60-year-old man has hoarseness and dyspnoea 3 weeks after thyroidectomy. Which structure is most likely injured?
ConceptRecurrent laryngeal nerve injury — the classic post-thyroidectomy complication.
TaskAnalysis (timing discriminator after surgery)
DiscriminatorThyroidectomy + hoarseness + dyspnoea = recurrent laryngeal nerve injury. It runs close to the ligament of Berry and enters the larynx behind it; it supplies all intrinsic laryngeal muscles except cricothyroid.
Not the answerExternal superior laryngeal nerve = loss of high-pitched voice (cannot sing), not true hoarseness. Cervical sympathetic chain = Horner syndrome (ptosis, miosis, anhidrosis) — and note pain radiating to the shoulder tip is C5/C6 root referral, not the nerve itself. Glossopharyngeal = dysphagia, loss of taste posterior third.
Trap typeTimed post-op trap — the discriminator is high-pitched voice (SLN) versus true hoarseness (RLN).
Future alertThyroidectomy + hoarseness = RLN. Monitor vocal cords; unilateral is usually well compensated by the opposite cord.
Source[RECALL] Jun 2025 Q116 tested this; also your Prediction 2026 Q23/Q166
Q34
A 45-year-old woman presents with unilateral purulent nasal discharge, facial pressure and fever for 10 days, worsening after an initial viral illness. Which is the most likely diagnosis?
DiscriminatorUnilateral purulent discharge + facial pressure + fever >10 days after a viral illness = bacterial sinusitis. Viral sinusitis is bilateral and self-limiting at 7–10 days.
Not the answerAllergic rhinitis = bilateral watery discharge with sneezing and itchy eyes, no fever, no facial pressure. Nasal polyps = pale insensitive smooth masses, sense of blockage not purulence. Deviated septum = mechanical obstruction, no discharge or fever.
Future alertPurulent + unilateral + >10 days + post-viral = bacterial sinusitis. Viral = bilateral, resolves by day 10.
SourceYour Prediction 2026 ENT explanation sheet Q186
Q35
A 2-year-old newborn is noted to have cyclic cyanosis that improves during crying, and difficulty feeding. A catheter cannot be passed through the right nostril into the nasopharynx. What is the diagnosis?
ConceptChoanal atresia — bony obstruction of the posterior nasal aperture.
TaskRecognition + immediate management
DiscriminatorNewborn + cyclic cyanosis relieved by crying + inability to pass a catheter through the nostril = choanal atresia. Cyclic because neonates are obligate nose breathers. Mandatory first-line is the McGovern nipple (oral airway) to relieve distress while awaiting definitive repair.
Not the answerSeptal deviation, polyp and cleft palate do not prevent catheter passage and do not produce cyclic cyanosis. Cleft palate is visible on inspection and causes nasal regurgitation.
Trap typeAirway-first trap — the emergency is the neonate's airway, not the anatomy.
Future alertCyanosis relieved by crying + blocked catheter = choanal atresia. Stabilise with an oral airway/McGovern nipple; never let a newborn with choanal atresia be sedated and intubated without a way to breathe.
SourceENT cheatsheet; 'unilateral nasal discharge / angiofibroma sign' cluster in your Dec 2025 report Error Log — cut and paste per wrong answer Every miss goes here. Dermatology and ENT are small blocks — one lost discriminator is worth more than the whole of Forensic Medicine. Field Entry Date Source Derm/ENT MCQ Drill Question # Subject Syllabus topic My answer Correct answer Missed discriminator Trap type Correct rule Future alert Revise from Cheatsheets/Derm_Cheatsheet_NRE.docx OR Cheatsheets/ENT_Cheatsheet_NRE.docx
DiscriminatorPainless violaceous plaques + AIDS + CD4 <200 = Kaposi. The violaceous colour is the whole clue.
Not the answerBacillary angiomatosis is also AIDS-related but forms red-purple nodules/pyogenic-granuloma-like vascular lesions — nodular, not plaques. Dermatofibroma = benign firm flesh-coloured nodule on a leg, healthy patients. Seborrhoeic keratosis = stuck-on brown plaque, elderly.
Trap typeAppearance-confusion trap — same colour, different morphology.
Future alertViolaceous + AIDS → Kaposi. Every sitting. Do not re-read.
Source[RECALL] Jun 2024 had the same stem; repeated Dec 2025
DiscriminatorExtensor + silvery scale + nail pitting = psoriasis. Nail pitting is the clincher.
Not the answerAtopic dermatitis = flexural, atopic history. Tinea = annular with central clearing, active scaly edge, not silvery and not symmetric. Pityriasis versicolor = hypopigmented confetti-like patches on trunk.
Trap typePaired-confuse — the exam's #1 dermatology trap.
TaskAnalysis (the flip side of the psoriasis pair)
DiscriminatorFlexural + personal/family atopy = atopic dermatitis. Location plus atopy is the two-feature requirement.
Not the answerPsoriasis = extensor + silvery, no atopy link. Contact dermatitis = exposure history (jewellery, nickel), localised to contact zone, no atopy. Seborrhoeic = scalp/face/retroauricular, greasy yellow scales.
Trap typeLocation inversion — the trap flips the site.
ConceptTinea corporis — dermatophyte infection of the trunk.
TaskAnalysis (diagnosis + confirmation)
DiscriminatorAnnular + central clearing + raised active scaly margin = dermatophyte. KOH shows septate branching hyphae.
Not the answerTzanck smear = herpes (multinucleated giant cells), not fungus. Gram stain = bacterial (impetigo/cellulitis). Patch test = contact dermatitis, delayed type IV reading.
Trap typeModality-confusion — picking the test that belongs to the mimic.
Future alertAnnular + central clearing → tinea, never psoriasis or atopic.
Source[RECALL] May 2026 Q126 tested the recognition stem
DiscriminatorBurrows in finger webs + nocturnal itch = scabies. First-line is permethrin, applied to the whole body below the neck overnight, repeated at day 7.
Not the answerIvermectin is second-line/reserve and is avoided in pregnancy. Hydrocortisone alone treats the inflammation, not the mite — it produces the steroid paradox (worse itch, atypical distribution). Antihistamines only sedate the itch, killing nothing.
Trap typeDefinitive-therapy trap — symptomatic relief offered instead of the mite killer.
Source[RECALL] Jun 2024 Q97 and Jun 2025 Q88 both tested this exact stem
Q6
Answer: A
ConceptHerpes zoster — VZV reactivation in sensory ganglia.
TaskRecall layered on recognition
DiscriminatorUnilateral dermatomal vesicles + prodromal pain + no midline crossing = zoster. Latent virus = VZV in the dorsal root ganglion.
Not the answerHSV-1 = oral/genital mucocutaneous ulcers, not dermatomal. HPV = warts/molluscum-like lesions. EBV = mononucleosis/lymphoma, no vesicular dermatomal rash.
Trap typeLatency-location trap — asking which ganglion, not which virus.
ConceptMorbilliform drug exanthem — the commonest drug rash.
TaskInterpretation + timing discriminator
DiscriminatorDelayed 7–14 days after an antibiotic + maculopapular + eosinophilia + intact mucosa = morbilliform drug eruption.
Not the answerSJS/TEN has mucosal erosions, bullae and epidermal detachment — this patient has none. AGEP shows sterile pustules on a feverish ill patient, not a maculopapular rash. Erythema multiforme classically follows HSV and gives target lesions with acral predilection.
Trap typeSeverity-inflation trap — benign drug rash dressed up as SJS.
Future alertMaculopapular + eosinophilia + intact mucosa = benign drug rash. Mucosa involved = SJS. That is the whole split.
DiscriminatorEvolution (E) of a pigmented lesion + asymmetry + irregular border + colour variation = melanoma. Change over time is the strongest single predictor.
Not the answerBCC = pearly, telangiectatic, ulcerated nodule, sun-exposed, slow. SCC = keratotic, scaly, firm nodule on sun-damaged skin. Dysplastic naevus is stable — the changing element is what excludes it.
Trap typeStability trap — dysplastic naevus and melanoma look alike until you notice change.
Future alertPigmented lesion that is CHANGING = melanoma until proven otherwise. Bates says D and E.
SourceMatches your Prediction 2026 Pathology Q18 (ABCD on changing mole)
DiscriminatorExtends beyond the original wound + does not spontaneously regress + common in dark skin = keloid.
Not the answerHypertrophic scar also fits but stays within the wound margins and regresses over time — that is the single separating feature. Dermatofibroma = dimples on lateral pressure (Fitzpatrick sign), unrelated to trauma. Lipoma = soft, mobile, subcutaneous, non-pigmented.
Trap typeKeloid-vs-hypertrophic — the boundary question is the entire exam point.
Future alertBeyond the margins = keloid. Within margins + regresses = hypertrophic. Commonest at earlobe and presternal.
Source[RECALL] Dec 2025 Q78 tested the pruritic post-excision lesion
Not the answerPemphigoid = tense bullae, subepidermal, Nikolsky negative, elderly, mucosa usually spared, better prognosis (bullous pemphigoid = BP180/BP230, hemidesmosome). Impetigo = superficial flaccid bullae but no acantholysis and responds to antibiotics. Linear IgA = annular 'string of beads' bullae, DIF linear IgA.
Trap typeTense-vs-flaccid inversion — the classic pemphigus/pemphigoid flip.
Future alertFlaccid + mucosa + Nikolsky+ = pemphigus. Tense + no mucosa + Nikolsky− = pemphigoid. Learn the pair as one item.
SourceYour Derm_Cheatsheet already carries this comparison — this is the drill on it
Q11
Answer: A
ConceptCutaneous leishmaniasis — sandfly vector, endemic in Pakistan.
TaskRecognition
DiscriminatorUlcer with rolled border + sandfly exposure + endemic region + chronic non-healing = cutaneous leishmaniasis.
Not the answerAnthrax = malignant pustule, painless black eschar with marked surrounding oedema and acute systemic toxicity. TB verrucosa cutis = verrucous plaque, warty, not a punched-out ulcer. SCC = everted, friable, bleeds easily, older/sun-damaged patient.
Trap typeGeographic/endemic trap — the exposure history is the discriminator.
DiscriminatorWood's lamp 'copper pennies'/spider-web fluorescence + hypopigmented scaly trunk patches = pityriasis versicolor due to Malassezia furfur.
Not the answerMicrosporum = tinea capitis, scalp/hair, green fluorescence. Candida = intertrigo with satellite pustules. T. mentagrophytes = inflammatory tinea corporis with raised keratotic border.
Trap typeOrganism–Wood's-lamp pairing — know which fungus fluoresces.
Not the answerFuruncle = single deep follicular infection, one drainage point. Cellulitis = diffuse, poorly demarcated, spreading erythema with no fluctuant collection. Hidradenitis = recurrent nodules/abscesses in apocrine areas (axilla, groin), with sinus tracts and scarring, chronic.
Trap typeMorphology-count trap — one opening vs many separates furuncle from carbuncle.
Future alertDiabetic + nape + multiple sinuses = carbuncle. Excise and drain; antibiotics alone will fail.
Trap typeVitamin-character confusion — all three B-vitamins cause skin findings.
Future alertCasal necklace + maize = niacin. Dermatitis + dementia + diarrhoea, not the neuropathy of B1/B6.
Source[RECALL] May 2026 Q135 tested pellagra; also your Batch1 Q47
Q15
Answer: D
ConceptVitiligo — autoimmune melanocyte destruction, acral and periorificial.
TaskInterpretation
DiscriminatorAcral + periorificial + fully depigmented + NO scale + no preceding inflammation = vitiligo. Poliosis (white hair) supports it.
Not the answerPityriasis alba = children, ill-defined pale patches with fine scale, post-inflammatory. Tinea versicolor = hypopigmented but scaly, KOH+, fluorescence. Post-inflammatory = history of preceding inflammation, ill-defined.
Trap typeScale-absence trap — vitiligo is the only one with genuinely no scale.
Future alertDepigmented + acral/periorificial + zero scale + white hair = vitiligo. Vitiligo is sharply demarcated, always.
Trap typeDepth trap — superficial crusting vs deeper spreading infection.
Future alertHoney-coloured crust in a child = impetigo. Most common skin infection of childhood. Mupirocin if localised.
SourceYour Derm cheatsheet: 'Impetigo — most common skin infection in children'
Q17
Answer: B
ConceptAcute otitis media — bulging TM, loss of light reflex, fever, otalgia.
TaskInterpretation + organism recall
DiscriminatorBulging red TM + loss of light reflex + fever in a child = AOM. Streptococcus pneumoniae is the single most common cause.
Not the answerPseudomonas = otitis externa and malignant otitis externa in diabetics. S. aureus = furuncle of the external canal, post-surgical. Moraxella = second/third most common, and a typical cause of antibiotic-resistant AOM.
Trap typeAOM-vs-externa trap — Pseudomonas is the classic wrong answer here.
Future alertBulging TM = AOM = pneumococcus = amoxicillin. Red TM with normal contour = otitis externa = ofloxacin.
Source[RECALL] Dec 2024 Q64 and Dec 2025 Q128 tested identical stems — repeat confirmed
DiscriminatorPainful canal + foul blood-stained discharge + water exposure + INTACT TM = otitis externa. Pseudomonas aeruginosa is most common; treat with topical ofloxacin and canal cleaning.
Not the answerAmoxicillin targets the middle ear, and the TM here is intact — the disease is in the canal. Candida = otomycosis, black debris with more itching than pain, after prolonged antibiotic drops. VZV = Ramsay Hunt, which needs facial palsy + vesicles in the concha, absent here.
Trap typeSite trap — canal vs middle ear changes the drug route completely.
Future alertPain on tragal movement + intact TM = externa = topical ofloxacin. Malignant externa = diabetic + granulation + skull-base osteomyelitis → urgent IV anti-pseudomonal.
SourceENT cheatsheet Block 1 table
Q19
Answer: A
ConceptAOM complicated by meningitis — a life-threatening ENT emergency.
TaskManagement sequence
DiscriminatorFever + headache + photophobia + neck stiffness on a background of otitis media = meningitis. Image first, then immediate IV third-generation cephalosporin. Do not wait for the CT to give antibiotics if there is no contraindication.
Not the answerEscalating oral amoxicillin is wrong — this is a systemic, life-threatening infection. Myringotomy alone treats the ear, not the meninges. Tympanostomy plus discharge is dangerous.
Trap typeFirst-step trap — the exam asks for stabilisation and the correct antibiotic, not the ENT procedure.
Future alertEar pain + meningism = meningitis. IV ceftriaxone/cefotaxime, don't delay for imaging.
Source[RECALL] Dec 2024 Q62 and May 2026 Q52 both tested this
DiscriminatorEpisodic vertigo lasting minutes-hours + fluctuating SNHL + tinnitus + ear fullness = Ménière's. Endolymphatic hydrops in the inner ear.
Not the answerBPPV = brief seconds-long positional vertigo with Dix-Hallpike positive, no hearing loss. Labyrinthitis = continuous vertigo after a viral URTI with hearing loss and nystagmus toward the unaffected ear. Schwannoma = progressive unilateral SNHL, no vertigo episodes, cerebellopontine angle.
Trap typeDuration trap — seconds (BPPV) vs minutes-hours (Ménière) vs continuous (labyrinthitis).
Future alertVertigo duration is the discriminator. Seconds = BPPV/Epley. Minutes-hours + SNHL = Ménière. Continuous post-URTI = labyrinthitis.
Source[RECALL] Dec 2024 Q51 and Dec 2025 Q120 both tested Ménière vs BPPV
Q21
Answer: C
ConceptTransient ischaemic attack — cochlear/vestibular stroke territory.
TaskAnalysis (recognising the vascular mimic)
DiscriminatorNegative Dix-Hallpike + SNHL + ataxia + episodes >30 minutes = cochleovestibular TIA. A posterior-circulation TIA is the must-not-miss diagnosis.
Not the answerMénière's is the near neighbour but typically has progressing unilateral hearing loss and tinnitus, not transient resolution with normal neuro exam between episodes. Labyrinthitis follows a viral prodrome. BPPV is positional and brief.
Trap typeDangerous-mimic trap — Ménière's and TIA look alike; duration and reversibility split them.
Future alertVertigo + SNHL + ataxia + normal between episodes = TIA until proven otherwise. Don't let Ménière's swallow it.
Source[RECALL] Dec 2025 Q120 tested exactly this stem
Q22
Answer: A
ConceptAcute epiglottitis — H. influenzae type b, airway emergency.
TaskManagement sequence (airway first)
DiscriminatorDrooling + tripod + hot-potato voice + absence of cough + no laryngeal stridor = epiglottitis. Sit him up and secure the airway first, then IV ceftriaxone.
Not the answerTongue-depressor examination is contraindicated — it can precipitate complete airway obstruction; this is the classic lethal trap. Lying him supine is equally dangerous. Steam + oral antibiotics is croup management and too slow here.
Trap typeThe lethal trap — the instinctive move (look in the throat) kills the patient.
Future alertDrooling + tripod + no cough = epiglottitis. NEVER depress the tongue. Keep upright, secure airway, IV ceftriaxone.
Source[RECALL] Dec 2025 Q100 tested this; croup comparison in your architecture brief
DiscriminatorBarking cough + inspiratory stridor + steeple sign + age 6 months–3 years = croup. Most commonly parainfluenza.
Not the answerRSV = bronchiolitis in under-2s, wheeze and poor feeding, no stridor/steeple sign. Hib = epiglottitis (drooling, tripod, no cough). Pertussis = paroxysmal cough with whoop and post-tussive vomiting, not stridor.
Trap typeCroup-vs-bronchiolitis trap — stridor + steeple sign vs pure wheeze.
SourceENT cheatsheet + your May 2026 architecture brief (Pattern A example)
Q24
Answer: B
ConceptForeign body aspiration — sudden onset, unilateral findings, child.
TaskRecognition (classic presentation)
DiscriminatorSudden onset while playing + unilateral wheeze + asymmetric air entry + no fever = aspirated foreign body. Nuts and seeds are the usual culprits; the right main bronchus is the commonest site.
Not the answerBronchiolitis = bilateral, fever, young infant. Croup = barking cough + stridor + steeple sign. Asthma = bilateral wheeze with recurrent history and trigger.
Trap typeLaterality trap — bilateral wheeze = asthma/viral; unilateral = foreign body until proven otherwise.
Future alertSudden + unilateral + afebrile = aspirated foreign body. Rigid bronchoscopy is definitive; do not rely on a normal CXR.
DiscriminatorAdolescent male + recurrent unilateral epistaxis + a nasal cavity mass = juvenile nasopharyngeal angiofibroma. Originates from the sphenopalatine foramen region.
Not the answerNasal polyps = pale, smooth, insensitive, usually bilateral and not associated with bleeding; rare before age 10. Antrochoanal polyp = single, arises from maxillary antrum, exits through the choana, child with unilateral discharge. Allergic rhinitis = bilateral, watery, itchy, sneezing.
Trap typeLaterality + bleeding trap — polyps are typically bilateral and non-bloody.
Future alertTeenage boy + unilateral bloody discharge + nasal mass = JNA. Biopsy is contraindicated — profuse haemorrhage. Diagnose by CT/MRI, treat by embolisation + surgery.
Source[RECALL] May 2026 Q105 tested this; 'angiofibroma sign' in your Dec 2025 report
Q26
Answer: D
ConceptUnsafe (attico-antral) CSOM with cholesteatoma → mastoiditis.
Not the answerOtitis externa is canal disease with an intact TM and no mastoid tenderness. Otosclerosis = progressive conductive hearing loss in a young adult with a normal TM and no discharge.
Trap typeSafe-vs-unsafe CSOM trap — the fatal complications sit only on the unsafe side.
Future alertAttic/marginal perforation + cholesteatoma + bone erosion = unsafe = surgery. Central perforation + mucoid discharge = safe = aural toilet. Cholesteatoma can erode the lateral semicircular canal (vertigo) and facial nerve (palsy).
SourceENT cheatsheet CSOM table
Q27
Answer: A
ConceptPre-biopsy imaging is mandatory before any nasal mass is sampled.
TaskManagement sequence (safety-first)
DiscriminatorBilateral obstruction + epistaxis + a nasal mass in a young patient — you must image before biopsy. Any vascular lesion (classically JNA) makes biopsy catastrophic.
Not the answerDirect excision without imaging risks catastrophic haemorrhage. Biopsy is potentially lethal in JNA. Empirical steroids delay the diagnosis in a lesion that may be malignant.
Trap typeThe safety trap — the exam rewards not doing the obvious procedure.
Future alertNasal mass + epistaxis → CT/MRI FIRST. Never biopsy a vascular nasal mass.
Source[RECALL] Dec 2024 Q48 tested the JNA recognition stem
Q28
Answer: C
ConceptTraumatic tympanic membrane perforation.
TaskInterpretation + anatomy
DiscriminatorTrauma + acute conductive loss + visible membrane perforation = tympanic membrane perforation. Most heal spontaneously in weeks; paper patch promotes healing if >50%.
Not the answerMalleus/stapes injury would not be visible as a membrane perforation. Chorda tympani injury (middle-ear surgery or temporal bone fracture) causes altered taste on the anterior two-thirds of the tongue, not conductive loss.
Trap typeStructure-spotting trap — the perforation is the sign, the membrane is the structure.
Future alertTrauma + conductive loss + perforation = TM perforation. Red flag: CSF otorrhea or vertigo after head injury = temporal bone fracture → CT, no nasal instrumentation.
Source[RECALL] May 2026 Q47 tested cricket-ball to ear
Q29
Answer: C
ConceptSubmandibular (Wharton's duct) sialolithiasis — stone at mealtimes.
TaskRecognition (meal-linked swelling)
DiscriminatorSwelling below the jaw that appears and hurts with eating = salivary stone. The submandibular gland is the second most common site after parotid, and the most common site in children.
Not the answerPleomorphic adenoma = painless, slow-growing, mobile parotid mass, usually middle-aged, no mealtime link. Warthin = older male, smoker, bilateral possible, cystic, pain usually absent. Buccal space abscess = fever, trismus, intraoral swelling, constant not meal-linked.
Trap typeMeal-linked vs not — the single cleanest ENT discriminator in the head/neck block.
Future alertSwelling with meals = sialolithiasis. Submandibular stone → diet and gland massage/duct expression, excise the gland if recurrent.
Source[RECALL] May 2026 Q37 tested this exact stem
Q30
Answer: A
ConceptRamsay Hunt syndrome — VZV in the geniculate ganglion.
TaskAnalysis (syndrome localisation)
DiscriminatorFacial nerve palsy + vesicles in the concha/external canal + otalgia = Ramsay Hunt syndrome. VZV lies in the geniculate ganglion of the facial nerve.
Not the answerTrigeminal = VZV of the ophthalmic division gives zoster ophthalmicus, a vesicular rash in the V1 dermatome. Pterygopalatine = postganglionic parasympathetic, no vesicles. Superior cervical = Horner syndrome (ptosis, miosis, anhidrosis).
Trap typeSyndrome-localisation trap — the vesicle location names the ganglion.
Future alertFacial palsy + ear vesicles = Ramsay Hunt = geniculate ganglion = VZV. Treat with acyclovir + steroid within 72 hours for best nerve recovery.
SourceENT cheatsheet Block 1 table
Q31
Answer: D
ConceptTuning-fork test interpretation — conductive vs sensorineural.
TaskAnalysis (bedside test reasoning)
DiscriminatorRinne negative (BC > AC) + Weber lateralises to the AFFECTED ear = conductive hearing loss on that side. Weber lateralises to the better ear in SNHL and to the worse ear in conductive.
Not the answerRight SNHL would give Rinne positive and Weber lateralising to the left/healthy ear — the exact opposite pattern. Bilateral SNHL gives Rinne positive both sides with Weber central.
Trap typeWeber-lateralisation trap — most students get the Weber direction backwards.
Future alertConductive → Weber to the bad ear. SNHL → Weber to the good ear. Rinne negative = conductive. Rinne positive-but-reduced = SNHL.
DiscriminatorBilateral symmetric lesions at the anterior 1/3–posterior 2/3 junction in a voice user = vocal cord nodules. Caused by phonotrauma/voice abuse.
Not the answerCarcinoma = unilateral, irregular, asymmetric, usually in an older smoker, with weight loss. Paralysis = immobile cord in the paramedian position, from recurrent laryngeal nerve injury. Contact granuloma = unilateral posterior laryngeal lesion from reflux/intubation.
Future alertTeacher + bilateral anterior-1/3 junction swellings = nodules = voice rest + speech therapy. Botulinum toxin is the option in your report — reserved for refractory cases.
Source[RECALL] your Prediction 2026 ENT explanation sheet Q187
Q33
Answer: B
ConceptRecurrent laryngeal nerve injury — the classic post-thyroidectomy complication.
TaskAnalysis (timing discriminator after surgery)
DiscriminatorThyroidectomy + hoarseness + dyspnoea = recurrent laryngeal nerve injury. It runs close to the ligament of Berry and enters the larynx behind it; it supplies all intrinsic laryngeal muscles except cricothyroid.
Not the answerExternal superior laryngeal nerve = loss of high-pitched voice (cannot sing), not true hoarseness. Cervical sympathetic chain = Horner syndrome (ptosis, miosis, anhidrosis) — and note pain radiating to the shoulder tip is C5/C6 root referral, not the nerve itself. Glossopharyngeal = dysphagia, loss of taste posterior third.
Trap typeTimed post-op trap — the discriminator is high-pitched voice (SLN) versus true hoarseness (RLN).
Future alertThyroidectomy + hoarseness = RLN. Monitor vocal cords; unilateral is usually well compensated by the opposite cord.
Source[RECALL] Jun 2025 Q116 tested this; also your Prediction 2026 Q23/Q166
DiscriminatorUnilateral purulent discharge + facial pressure + fever >10 days after a viral illness = bacterial sinusitis. Viral sinusitis is bilateral and self-limiting at 7–10 days.
Not the answerAllergic rhinitis = bilateral watery discharge with sneezing and itchy eyes, no fever, no facial pressure. Nasal polyps = pale insensitive smooth masses, sense of blockage not purulence. Deviated septum = mechanical obstruction, no discharge or fever.
Future alertPurulent + unilateral + >10 days + post-viral = bacterial sinusitis. Viral = bilateral, resolves by day 10.
SourceYour Prediction 2026 ENT explanation sheet Q186
Q35
Answer: A
ConceptChoanal atresia — bony obstruction of the posterior nasal aperture.
TaskRecognition + immediate management
DiscriminatorNewborn + cyclic cyanosis relieved by crying + inability to pass a catheter through the nostril = choanal atresia. Cyclic because neonates are obligate nose breathers. Mandatory first-line is the McGovern nipple (oral airway) to relieve distress while awaiting definitive repair.
Not the answerSeptal deviation, polyp and cleft palate do not prevent catheter passage and do not produce cyclic cyanosis. Cleft palate is visible on inspection and causes nasal regurgitation.
Trap typeAirway-first trap — the emergency is the neonate's airway, not the anatomy.
Future alertCyanosis relieved by crying + blocked catheter = choanal atresia. Stabilise with an oral airway/McGovern nipple; never let a newborn with choanal atresia be sedated and intubated without a way to breathe.
SourceENT cheatsheet; 'unilateral nasal discharge / angiofibroma sign' cluster in your Dec 2025 report Error Log — cut and paste per wrong answer Every miss goes here. Dermatology and ENT are small blocks — one lost discriminator is worth more than the whole of Forensic Medicine. Field Entry Date Source Derm/ENT MCQ Drill Question # Subject Syllabus topic My answer Correct answer Missed discriminator Trap type Correct rule Future alert Revise from Cheatsheets/Derm_Cheatsheet_NRE.docx OR Cheatsheets/ENT_Cheatsheet_NRE.docx