Based on the images, I can identify all the MCQs clearly. Let me answer them directly from my ENT knowledge:

Q4. Which is NOT a feature of allergic rhinitis? Answer: a) Common in elderly people Allergic rhinitis is most common in younger individuals. Pale oedematous inferior turbinate, eosinophils in nasal smear, and transverse nasal crease are all classic features.

Q5. Which is FALSE for external auditory canal? Answer: d) Foramen of Huschke is situated in the vicinity of the Fissure of Santorini The Foramen of Huschke is located in the tympanic plate (anterior wall), NOT near the Fissure of Santorini (which is in the cartilaginous part). The other options are true - dehiscence can occur in cartilaginous canal, it is ~24mm in length, and bony canal contains ceruminous glands.

Q6. Which is NOT a clinical feature of presbycusis? Answer: a) Asymmetric sensorineural hearing loss Presbycusis characteristically causes bilateral symmetric sensorineural hearing loss. Recruitment, poor speech discrimination, and slowly progressive course are all typical features.

Q7. Onodi cells are important because: Answer: a) Optic nerve is vulnerable at these cells Onodi cells (sphenoethmoid cells) are the most posterior ethmoid air cells that pneumatize around the optic nerve and internal carotid artery, making the optic nerve particularly vulnerable during sinus surgery.

Q8. 20-year-old with longstanding foul-smelling ear discharge, now otalgia, fever, headache, vomiting: Answer: c) Malignant otitis externa (The paper has a tick mark on "c" - Malignant otitis externa) Wait - this presentation with chronic foul-smelling discharge + otalgia + headache + fever suggests a complication of CSOM. Most likely: a) Brain abscess - as intracranial complication of chronic otitis media. The tick on the paper appears to be on Malignant otitis externa, but the classical answer for CSOM complications with these symptoms is Brain abscess (a).

Q9. 6-month-old baby with stridor worsening on crying, improving in prone position: Answer: c) Laryngomalacia This is the classic presentation - stridor worse with agitation/crying, better in prone position (supine worsens it). Laryngomalacia is the most common cause of stridor in infants.

Q10. Post-nasal fracture watery fluid from nostril - test to confirm nature: Answer: c) Do biochemical analysis of fluid and match findings with specimen collected by lumbar puncture (Beta-2 transferrin / CSF comparison) The gold standard is beta-2 transferrin test, which biochemically confirms CSF. Comparing with lumbar puncture specimen is the classic confirmatory method described here.

Q11. 40-year-old on steroids, nasal boil → eyelid swelling + chemosis + ophthalmoplegia + fever: Answer: b) MRI scan of para nasal sinuses and orbit This is cavernous sinus thrombosis (complication of nasal furuncle/boil spreading via facial vein). MRI of PNS and orbit is the best investigation to confirm the diagnosis and extent.

Q12. 30-year-old lady, 5 children, hoarseness for 1 month, no surgery: Answer: c) Reinke's edema A multiparous woman (stress on voice, smoking associated) with chronic hoarseness - Reinke's edema is classic. Vocal cord nodules occur in voice abusers (teachers, singers). Carcinoma is less likely without risk factors mentioned.

Q1. Severe anterior epistaxis with anemia/hypotension - artery most likely culprit: Answer: c) Greater palatine (tick visible on paper) Actually, for severe anterior epistaxis requiring arterial occlusion causing hemodynamic compromise, the sphenopalatine artery is the main arterial supply. The greater palatine artery is a branch. However, the answer marked on the paper is Greater palatine (c), and d) Sphenopalatine is the correct textbook answer for endoscopic ligation. The tick appears on "c" but the best answer is d) Sphenopalatine.

Q2. Rinne's positive both ears, Weber lateralized to LEFT: Answer: d) Left side sensorineural hearing loss

Correction: Weber lateralizes to the worse ear in conductive loss and to the better ear in SNHL. Weber to left + Rinne positive both = Right SNHL (right ear hears better by bone, so Weber goes to less affected = left).

Answer: c) Right side sensorineural hearing loss - Weber lateralizes to the better/less affected ear in SNHL. Left side has worse SNHL if Weber goes right...

Re-analysis: Weber goes to the better ear in SNHL and to the affected ear in CHL. Weber lateralized to LEFT with Rinne positive bilaterally = Left ear is the better ear OR right ear has SNHL. Answer: d) Left side sensorineural hearing loss - Weber to left means left is better/less affected if both have SNHL, OR right has SNHL. Answer: d) Left side sensorineural hearing loss - the right ear has worse SNHL pulling Weber away from it (toward left = healthier side). Actually the correct answer is d) Left SNHL only if Weber goes to the right. Since Weber goes to LEFT: Right SNHL.

Q3. Clinical features of Sluder's neuralgia - EXCEPT (answer not fully visible): Sluder's neuralgia (sphenopalatine neuralgia) features: rhinorrhea, increased lacrimation, nasal stuffiness, unilateral facial pain, photophobia. The option NOT listed as a feature would be the answer (option c is cut off in the image).

Q13. 6-month-old with stridor worse on crying, better in prone: Answer: c) Laryngomalacia (same as Q9)

Q14. Newborn with respiratory distress and difficult feeding: Answer: b) Bilateral posterior choanal atresia Classic - newborns are obligate nasal breathers; bilateral choanal atresia causes cyclical cyanosis relieved by crying, and difficulty feeding.

Q15. Symptoms of primary atrophic rhinitis - EXCEPT: Answer: d) Sense of nasal obstruction (tick visible) In atrophic rhinitis (ozaena), the turbinates are atrophied so the nasal cavity is actually wide/patent - patients do NOT feel nasal obstruction. Bad odor (felt by patient and others) and epistaxis are classic features.

Q16. NOT a clinical feature of adenoid hypertrophy: Answer: d) Chronic suppurative otitis media Adenoid hypertrophy causes Eustachian tube obstruction leading to secretory/serous otitis media (glue ear), NOT chronic suppurative otitis media (CSOM). Nasal obstruction, snoring, and nocturnal cough are all features.

Q17. Right complete facial paralysis, noisy work for 20 years: Answer: b) Left ear hearing is worse than right (marked on paper) In right facial palsy, the stapedius reflex on the right is absent. In noise exposure, the ear without stapedial protection (right) should theoretically be worse. However, the answer marked on paper is b) Left ear hearing worse than right. The correct answer is actually: with right facial nerve palsy, right stapedius is non-functional, so right ear is MORE susceptible to noise damage. Answer: d) Right ear hearing loss is more at 4kHz - noise-induced loss is worst at 4kHz and the unprotected right ear would be more affected.

Q18. Commonest presenting symptom of nasopharyngeal (NP) carcinoma: Answer: c) Enlarged cervical lymph node NPC most commonly presents with a painless neck mass (cervical lymphadenopathy) - in 60-70% of cases. Hearing loss (due to serous otitis media from ET obstruction) and nasal symptoms also occur but are less common as the presenting complaint.

Q19. Secondary bleeding after adenoidectomy treated by: Answer: a) Removal of remnants and posterior pack (tick visible) Secondary (delayed) post-adenoidectomy bleeding is treated by removal of adenoid remnants + posterior nasal packing.

Q20. Polyp with mulberry appearance and bleeding on touch: Answer: c) Antrochoanal polyp (tick visible) Actually, bleeding on touch + mulberry appearance suggests Rhinosporidiosis (b) - which is a fungal infection causing highly vascular, lobulated, mulberry-like polyps that bleed easily on touch. Antrochoanal polyps are smooth and non-bleeding. Correct answer: b) Rhinosporidiosis