Master every high-yield ENT topic for NEET PG 2026: otology (CSOM, cholesteatoma, otosclerosis, BPPV), rhinology, laryngology, pharyngology, audiometry, foreign bodies, head and neck tumors, and tracheostomy with exam-focused facts.
Version 1.0 — Published April 2026
ENT contributes 8-12 questions to NEET PG and rewards candidates who master a focused set of clinical associations rather than attempting encyclopedic coverage. The eight high-yield areas are:
ENT is the subject where a single clinical sign often points to the diagnosis. A foul-smelling ear discharge means atticoantral CSOM until proven otherwise. A Schwartze sign on otoscopy means otosclerosis. A unilateral nasal polyp in an adolescent male means angiofibroma. NBE recycles these associations year after year.
This guide covers the eight high-yield areas with the clinical facts NBE tests. Pair it with the ENT subject hub and daily MCQ practice to lock in 6-10 marks from ENT alone.
Otology is the highest-yield subdivision of ENT, contributing 3-4 questions per paper. CSOM differentiation and cholesteatoma are perennial favorites.
CSOM is chronic inflammation of the middle ear cleft (middle ear + mastoid + Eustachian tube) with a persistent tympanic membrane perforation and recurrent ear discharge for more than 6 weeks.
| Feature | Tubotympanic (safe) | Atticoantral (unsafe) |
|---|
This content is for educational purposes for NEET PG exam preparation. It is not a substitute for professional medical advice, diagnosis, or treatment. Clinical information has been reviewed by qualified medical professionals.
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Join on Telegram →| Site | Pars tensa (anteroinferior) | Pars flaccida or posterosuperior marginal |
| Perforation | Central | Marginal or attic |
| Discharge | Mucoid/mucopurulent, non-foul | Scanty, foul-smelling, purulent |
| Cholesteatoma | Absent | Present |
| Hearing loss | Conductive (mild to moderate) | Conductive or mixed |
| Granulations | Uncommon | Common (aural polyp) |
| Complications | Rare | Intracranial complications (meningitis, brain abscess, lateral sinus thrombosis) |
| Management | Medical (aural toilet + topical antibiotics); surgery if failed (tympanoplasty) | Surgical — mastoidectomy (mandatory, medical management insufficient) |
Cholesteatoma is a sac of keratinized stratified squamous epithelium in the middle ear or mastoid. It is locally destructive — erodes bone through pressure necrosis and enzymatic (collagenase) action.
Types:
Complications of cholesteatoma: Erosion of ossicles (incus most commonly affected), labyrinthine fistula (lateral semicircular canal), facial nerve palsy, meningitis, brain abscess (temporal lobe or cerebellar), lateral sinus thrombosis, extradural abscess.
Treatment: Canal wall down mastoidectomy (modified radical mastoidectomy) is the standard for extensive cholesteatoma. Canal wall up mastoidectomy preserves the posterior canal wall but has a higher recurrence rate and requires planned second-look surgery.
Otosclerosis is abnormal bone remodeling of the otic capsule, most commonly affecting the stapes footplate at the fissula ante fenestram, causing progressive conductive hearing loss.
Clinical features: Bilateral progressive conductive hearing loss in a young adult (20-40 years), often female. Family history positive in 50% (autosomal dominant with incomplete penetrance). Paracusis of Willis — hearing better in noisy environments (raised voice level of others overcomes the conductive barrier).
Otoscopy findings:
Audiometry: Conductive hearing loss with air-bone gap. Carhart notch — apparent dip in bone conduction at 2000 Hz (an artifact, not true SNHL). This disappears after successful stapedectomy.
Treatment: Stapedectomy (replacement of stapes with a prosthesis) or stapedotomy (small fenestra technique). Alternatively, hearing aids for those declining surgery. Sodium fluoride may slow active otosclerosis (controversial).
BPPV is the most common cause of peripheral vertigo. Caused by displaced otoconia (calcium carbonate crystals) from the utricle entering the semicircular canals (most commonly the posterior semicircular canal).
Clinical features: Brief episodes (under 60 seconds) of intense rotatory vertigo triggered by head position changes (rolling over in bed, looking up, bending down). No hearing loss, no tinnitus (distinguishes from Meniere disease).
Diagnosis: Dix-Hallpike test — patient is rapidly moved from sitting to supine with head turned 45 degrees and extended 30 degrees over the edge of the bed. Positive test: torsional nystagmus with latency (2-5 seconds), fatiguable (decreases on repetition), duration under 60 seconds.
Treatment: Epley maneuver (canalith repositioning procedure) — sequential head positions to guide otoconia out of the posterior SCC back into the utricle. Success rate above 80% in a single session.
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Start Free Practice →Rhinology contributes 1-2 questions per paper. The focus is on sinusitis, epistaxis management, and the critical differentiation between ethmoidal and antrochoanal polyps.
DNS is deviation of the nasal septum from the midline, causing unilateral nasal obstruction. The deviated side shows a septal spur or deflection; the opposite side often shows compensatory inferior turbinate hypertrophy.
Surgical correction: Septoplasty (submucous resection of deviated cartilage/bone, preserving the mucoperichondrium). Indicated for symptomatic obstruction, recurrent sinusitis, or as an access procedure for endoscopic sinus surgery.
The maxillary sinus is the most commonly affected sinus in adults (dependent drainage position — the ostium is located high on the medial wall, near the roof, making gravity-dependent drainage difficult). The ethmoidal sinuses are most commonly affected in children (ethmoids are the first sinuses to develop and are the only sinuses present at birth).
Complications of sinusitis (rhinogenic):
Anterior epistaxis (90% of cases) — originates from Little area (Kiesselbach plexus) on the anterior nasal septum. Blood supply from branches of both internal and external carotid arteries (anterior ethmoidal artery + sphenopalatine artery + superior labial artery + greater palatine artery). Most common in children and young adults.
Posterior epistaxis (10%) — originates from Woodruff plexus (sphenopalatine artery area) on the posterior lateral nasal wall. More common in elderly, hypertensives. Heavier bleeding, harder to control.
Management stepwise: Anterior nasal packing (Merocel or ribbon gauze with bismuth iodoform paraffin paste/BIPP), posterior nasal packing (Foley catheter or posterior pack), endoscopic sphenopalatine artery ligation, external carotid artery ligation, or embolization for refractory cases.
| Feature | Ethmoidal polyps | Antrochoanal polyp |
|---|---|---|
| Origin | Ethmoidal labyrinth mucosa | Maxillary sinus (antrum) |
| Side | Bilateral (typically) | Unilateral |
| Number | Multiple | Single, pedunculated |
| Extension | Nasal cavity | Nasal cavity → choana → nasopharynx |
| Age | Adults (40+); associated with asthma and aspirin sensitivity (Samter triad) | Adolescents/young adults |
| Treatment | Endoscopic polypectomy + steroids; high recurrence | Endoscopic removal with clearance of maxillary sinus origin |
Samter triad (aspirin-exacerbated respiratory disease): Nasal polyps + asthma + aspirin sensitivity. These patients are at risk of severe bronchospasm with NSAIDs.
Laryngology contributes 1-2 questions per NEET PG paper, focused on recurrent laryngeal nerve (RLN) injury patterns and laryngeal carcinoma staging.
Unilateral RLN palsy: Vocal cord in paramedian (cadaveric) position on the affected side. Presents with hoarseness, breathy voice, and aspiration. Most common cause: thyroid surgery (iatrogenic). Other causes: lung carcinoma (left RLN, longer course around aortic arch), aortic aneurysm, neck surgery.
Bilateral RLN palsy:
Semon law: In progressive RLN lesions, abductors (posterior cricoarytenoid — the only abductor of vocal cords) are affected before adductors. Therefore, early RLN palsy presents with the cord in the midline (abductor paralysis), while complete RLN palsy moves the cord to the paramedian/cadaveric position.
Glottic carcinoma (60-65% of laryngeal cancers) — arises from the true vocal cords. Presents early with hoarseness (even a small lesion affects voice). Lymphatic drainage is poor from the glottis (vocal cords have sparse lymphatics), so nodal metastasis is late. Best prognosis of all laryngeal cancers.
Supraglottic carcinoma (30-35%) — arises from epiglottis, aryepiglottic folds, false cords. Presents late (no early voice change). Rich lymphatic drainage — nodal metastasis is early and often bilateral. Worse prognosis.
Subglottic carcinoma (rare, <5%) — presents with stridor. Often advanced at diagnosis.
Stridor is a high-pitched sound produced by turbulent airflow through a narrowed airway. Its timing indicates the level of obstruction:
Most common in children aged 5-15 years. Causes: Group A beta-hemolytic Streptococcus (GAS) is the most important bacterial cause due to complications (rheumatic fever, post-streptococcal glomerulonephritis). Viruses account for the majority of episodes.
Indications for tonsillectomy (Paradise criteria): 7 or more episodes in 1 year, or 5 or more episodes per year for 2 years, or 3 or more episodes per year for 3 years. Each episode must have documented sore throat with at least one of: fever above 38.3 C, cervical lymphadenopathy, tonsillar exudate, or positive GAS culture.
Collection of pus between the tonsillar capsule and the superior constrictor muscle. Most common deep neck space infection.
Clinical features: Severe unilateral sore throat, trismus (difficulty opening mouth — spasm of medial pterygoid), uvula deviated to the opposite side, "hot potato" voice (muffled), drooling, and unilateral tonsillar swelling with displacement medially and inferiorly.
Treatment: Aspiration or incision and drainage (at the point of maximum bulging, typically the superior pole). IV antibiotics (amoxicillin-clavulanate or clindamycin). Interval tonsillectomy may be considered after resolution (especially in recurrent quinsy).
Audiometry interpretation is a standalone question topic in NEET PG, separate from the disease-specific questions.
| Test | Technique | Conductive hearing loss | SNHL |
|---|---|---|---|
| Rinne | Compare AC (fork near ear) vs BC (fork on mastoid) | Negative (BC > AC) | Positive (AC > BC, but both reduced) |
| Weber | Fork on vertex of skull | Lateralizes to affected ear | Lateralizes to better ear |
| ABC (Absolute Bone Conduction) | Compare patient BC with examiner BC | Normal (cochlea is normal) | Reduced |
Rinne false negative: In severe unilateral SNHL, the patient may hear the fork placed on the affected mastoid via transcranial transmission to the opposite ear, giving a false Rinne positive. The masking (Barany noise box) eliminates this.
| Condition | Air conduction | Bone conduction | Air-bone gap |
|---|---|---|---|
| Normal | 0-25 dB | 0-25 dB | Absent |
| Conductive loss | Elevated | Normal | Present (characteristic) |
| Sensorineural loss | Elevated | Elevated (equal to AC) | Absent |
| Mixed loss | Elevated | Elevated (but less than AC) | Present |
| Type | Curve | Interpretation |
|---|---|---|
| Type A | Normal peak at 0 daPa | Normal middle ear function |
| Type As | Low amplitude, normal peak position | Otosclerosis (stiff ossicular chain) |
| Type Ad | Very high amplitude | Ossicular discontinuity |
| Type B | Flat, no peak | Middle ear effusion (secretory otitis media) or tympanic membrane perforation |
| Type C | Peak shifted to negative pressure | Eustachian tube dysfunction |
Common in children (beads, stones, insects). For live insects: instill mineral oil or 4% lidocaine to kill the insect first, then remove. Never attempt syringing for vegetable matter (swells with water).
Classic presentation: Unilateral foul-smelling nasal discharge in a child. The discharge is purulent and bloodstained. A rhinolith (calcified foreign body) may form if the object is retained for a long period.
Button battery — a nasal emergency. Causes liquefactive necrosis of septal cartilage within 4 hours due to alkali leakage. Immediate removal required. Septal perforation is a common complication.
Inhaled foreign bodies lodge preferentially in the right main bronchus (wider, shorter, more vertical than the left). Most common in children aged 1-3 years.
Clinical features: Sudden onset coughing, choking, wheezing. If a check-valve mechanism develops: hyperinflation of the affected lung (obstructive emphysema on CXR — affected side hyperinflated, mediastinal shift to opposite side on expiration).
Management: Rigid bronchoscopy for removal in children. Heimlich maneuver for acute complete obstruction in conscious patients. Back blows and chest thrusts for infants under 1 year.
Strong association with Epstein-Barr virus (EBV) — the most important etiological factor. Endemic in Southern China, Southeast Asia. WHO classification: Type I (keratinizing SCC), Type II (non-keratinizing), Type III (undifferentiated — most common type, strongest EBV association).
Trotter triad: Conductive hearing loss (Eustachian tube obstruction), ipsilateral palatal paralysis, and trigeminal neuralgia — indicates lateral pharyngeal space invasion. This is a classic NEET PG association.
Treatment: Primary radiotherapy (NPC is radiosensitive). Concurrent chemoradiotherapy for advanced stages. Surgery has a limited role due to anatomical inaccessibility of the nasopharynx.
Benign vascular tumor arising from the sphenopalatine foramen region. Occurs exclusively in adolescent males (10-25 years). Hormonally responsive (androgen receptors present).
Clinical features: Unilateral nasal obstruction + recurrent severe epistaxis in a teenage male. Smooth, lobulated, reddish mass in the nasopharynx.
Investigation: CT/MRI shows a vascular mass with Holman-Miller sign (anterior bowing of the posterior maxillary wall on lateral X-ray). Biopsy is absolutely contraindicated — the tumor is highly vascular and biopsy risks life-threatening hemorrhage.
Treatment: Pre-operative embolization (internal maxillary artery) followed by surgical excision. Radiotherapy reserved for inoperable or recurrent cases.
The incision is made between the 2nd and 4th tracheal rings. The thyroid isthmus lies over the 2nd-3rd rings and may need to be divided or retracted. The key relations:
| Timing | Complication | Key detail |
|---|---|---|
| Immediate | Hemorrhage, pneumothorax (especially in children — pleural apices extend higher), surgical emphysema | Apical pleura at risk in children |
| Early | Tube displacement/blockage, wound infection, secondary hemorrhage | Tube change should NOT be done in first 72 hours (tract not formed) |
| Late | Tracheal stenosis (most common late complication), tracheo-esophageal fistula, tracheo-innominate artery fistula (catastrophic hemorrhage) | High-pressure cuffs cause ischemic necrosis of tracheal wall |
Cover the eight areas using Dhingra's Diseases of Ear, Nose and Throat. Spend one day on otology (the highest-yield section), one day on rhinology + laryngology, and one day on audiometry + miscellaneous. Build one-page summaries for: CSOM comparison table, tuning fork test grid, and laryngeal cancer types.
Solve 25-30 mixed ENT MCQs daily. Focus on audiogram interpretation and clinical vignettes. Build a spaced repetition deck of named signs (Schwartze, Carhart notch, Trotter triad, Holman-Miller).
For targeted practice, use the ENT subject page. For broader surgical principles, see the Surgery high-yield topics guide.
ENT contributes 8-12 questions in NEET PG (2021-2024 analysis). Otology (CSOM, cholesteatoma, hearing loss types) accounts for 3-4 questions most years, followed by laryngology (1-2), rhinology (1-2), and head and neck tumors (1-2). Audiometry interpretation and tuning fork tests appear as standalone questions almost every year.
CSOM types (tubotympanic vs atticoantral) with cholesteatoma is the single highest-yield ENT topic. Otosclerosis (Schwartze sign, Carhart notch), BPPV (Dix-Hallpike, Epley maneuver), tuning fork tests, vocal cord paralysis, and laryngeal cancer staging are consistent contributors.
Dhingra's Diseases of Ear, Nose and Throat is the standard for Indian PG entrance exams. Supplement with Logan Turner for otology depth. Focus 60% of study time on otology — it carries the highest question density.
Tubotympanic (safe) has central perforation, non-foul mucoid discharge, and no cholesteatoma. Atticoantral (unsafe) has marginal/attic perforation, foul-smelling discharge, and cholesteatoma. Atticoantral CSOM requires surgical management (mastoidectomy).
The Carhart notch is an apparent bone conduction dip at 2000 Hz, characteristic of otosclerosis. It is an artifact that disappears after successful stapedectomy. NEET PG tests this as an audiogram pattern recognition question.
Rinne negative (BC > AC) = conductive loss. Weber lateralizes to affected ear in conductive loss, to better ear in SNHL. These combinations appear as clinical scenarios testing your ability to localize the type and side of hearing loss.
Emergency: complete upper airway obstruction, failed intubation, bilateral vocal cord paralysis. Elective: prolonged intubation over 7-10 days, major head/neck surgery, neurological conditions with poor cough reflex. Know the anatomy (2nd-4th tracheal rings) and complications.
Focus on tables: CSOM types, tuning fork test interpretation, laryngeal cancer staging, and audiometry patterns. Solve 20 ENT MCQs daily. On exam day, review only the tuning fork grid and CSOM comparison — these cover 3-4 questions.
Start your ENT prep today. Open the ENT subject page and solve your first 15 MCQs — the clinical associations you drill now are the answers you will retrieve on exam day. Want unlimited AI-powered ENT MCQs with detailed explanations? Explore NEETPGAI Pro.
Written by: NEETPGAI Editorial Team Reviewed by: NEETPGAI Medical Advisory Board Last reviewed: April 2026
This article is reviewed by qualified medical professionals for clinical accuracy and exam relevance. For corrections or updates, contact the editorial team.