Diseases of the Pharynx — MCQs

Diseases of the Pharynx Indian Medical PG Practice Questions and MCQs

Question 161: Which of the following statements regarding Plummer-Vinson syndrome is not true?

A. It is otherwise known as Patterson-Brown-Kelly disease.
B. Iron deficiency anemia is probably the basic cause.
C. It occurs exclusively in men. (Correct Answer)
D. All of the above.

Explanation: **Explanation:** Plummer-Vinson Syndrome (PVS), also known as **Paterson-Brown-Kelly Syndrome**, is a rare condition characterized by a classic triad of **iron-deficiency anemia, dysphagia, and esophageal webs**. **Why Option C is the correct answer (The False Statement):** Plummer-Vinson syndrome occurs **predominantly in middle-aged women** (usually between 30–60 years of age). It is extremely rare in men. Therefore, the statement that it occurs "exclusively in men" is factually incorrect. **Analysis of other options:** * **Option A:** It is indeed synonymous with **Paterson-Brown-Kelly disease**, named after the British laryngologists who described it independently of Plummer and Vinson. * **Option B:** While the exact pathogenesis is debated, **chronic iron deficiency** is widely accepted as the primary underlying cause. Iron is essential for the health of the mucosal epithelium; its deficiency leads to mucosal atrophy and the subsequent formation of webs. **High-Yield Clinical Pearls for NEET-PG:** * **The Triad:** 1. Iron deficiency anemia (Microcytic hypochromic), 2. Post-cricoid dysphagia (painless and progressive), 3. Upper esophageal webs. * **Clinical Signs:** Koilonychia (spoon-shaped nails), glossitis (smooth red tongue), and cheilosis (cracks at the corners of the mouth). * **Malignant Potential:** It is considered a **premalignant condition**. It significantly increases the risk of **Squamous Cell Carcinoma** of the post-cricoid region and esophagus. * **Treatment:** Iron supplementation often resolves the dysphagia; however, persistent webs may require endoscopic dilation. Regular follow-up is mandatory due to cancer risk.

Question 162: The Gillette space is typically associated with which anatomical space?

A. Parapharyngeal space
B. Retropharyngeal space (Correct Answer)
C. Peritonsillar space
D. None of the above

Explanation: **Explanation:** The **Gillette space** is a potential anatomical space located within the **retropharyngeal space**. It is specifically defined as the area between the buccopharyngeal fascia (covering the constrictor muscles) and the prevertebral fascia. It contains the **Nodes of Rouviere** (lateral retropharyngeal lymph nodes), which are clinical landmarks for the spread of nasopharyngeal carcinoma and the site of origin for retropharyngeal abscesses in children. **Why the other options are incorrect:** * **Parapharyngeal space:** This is a cone-shaped space lateral to the pharynx. While it communicates with the retropharyngeal space, it does not contain the Gillette space. It is primarily known for containing the carotid sheath and the "styloid process" landmarks. * **Peritonsillar space:** This is a potential space located between the capsule of the palatine tonsil and the superior constrictor muscle. It is the site for peritonsillar abscess (Quinsy) but is anatomically distinct and more medial/anterior than the retropharyngeal space. **High-Yield Clinical Pearls for NEET-PG:** * **Nodes of Rouviere:** These nodes usually atrophy after the age of 4–5 years. This explains why **retropharyngeal abscesses** are more common in young children (following URTI) and rare in adults (where they are usually due to trauma or TB). * **Danger Space:** Located immediately posterior to the retropharyngeal space (between the alar and prevertebral fascia), it provides a direct pathway for infection to spread from the neck to the **posterior mediastinum**. * **Imaging:** On a lateral X-ray of the neck, the retropharyngeal space is considered enlarged if it exceeds **7 mm** at C2 or **14-22 mm** at C6.

Question 163: Tonsillectomy is indicated in which of the following conditions?

A. Recurrent acute tonsillitis
B. Aphthous ulcers in the pharynx
C. Rheumatic tonsillitis (Correct Answer)
D. Physiological enlargement of tonsils

Explanation: **Explanation:** Tonsillectomy is a common surgical procedure in ENT, and its indications are categorized into absolute and relative. **Why Option C is Correct:** **Rheumatic tonsillitis** (tonsillitis associated with Rheumatic Heart Disease or Acute Glomerulonephritis) is considered a significant indication for tonsillectomy. In these cases, the tonsils act as a reservoir for **Group A Beta-Hemolytic Streptococcus (GABHS)**. Removing the tonsils eliminates the source of recurrent streptococcal antigens, thereby preventing further immunological damage to the heart valves or kidneys. **Analysis of Incorrect Options:** * **A. Recurrent acute tonsillitis:** While this is a common reason for surgery, it must meet specific criteria (e.g., the **Paradise Criteria**: 7 episodes in 1 year, 5 per year for 2 years, or 3 per year for 3 years) to be a definitive indication. In a single-choice question where Rheumatic fever is an option, the systemic risk of the latter takes precedence. * **B. Aphthous ulcers:** These are painful, shallow ulcers of unknown etiology (often stress or nutritional deficiency related) and are not treated by tonsillectomy. * **D. Physiological enlargement:** Tonsillar hypertrophy is normal in children (peaking between ages 3–6). Surgery is only indicated if it causes **obstructive symptoms** (Sleep Apnea or dysphagia), not simply because they are large. **NEET-PG High-Yield Pearls:** * **Absolute Indications:** Sleep Apnea (OSAS), suspicion of malignancy (unilateral enlargement), and peritonsillar abscess (Quinsy) unresponsive to drainage. * **Most common nerve injured:** Glossopharyngeal nerve (leads to loss of taste on the posterior 1/3 of the tongue). * **Most common artery involved in hemorrhage:** Facial artery (specifically the tonsillar branch). * **Eagle’s Syndrome:** Elongated styloid process causing post-tonsillectomy pain.

Question 164: Which of the following is NOT true about Plummer-Vinson syndrome?

A. It occurs in elderly males. (Correct Answer)
B. It is characterized by a post-cricoid web.
C. It predisposes to hypopharyngeal malignancy.
D. It is associated with koilonychia.

Explanation: **Plummer-Vinson Syndrome (PVS)**, also known as **Paterson-Brown-Kelly Syndrome**, is a classic triad of iron deficiency anemia, dysphagia, and esophageal webs. ### **Explanation of Options** * **Option A (Correct):** This statement is false because PVS characteristically affects **middle-aged females** (usually between 30–50 years). It is exceptionally rare in males. Therefore, "elderly males" is the incorrect demographic. * **Option B:** The syndrome is defined by the presence of a **post-cricoid web** (a thin mucosal fold). This causes "sideropenic dysphagia," which is typically painless and progressive, primarily for solids. * **Option C:** PVS is a well-known **premalignant condition**. It predisposes patients to **Squamous Cell Carcinoma** of the post-cricoid region and the upper third of the esophagus. Regular endoscopic surveillance is often recommended. * **Option D:** Since the underlying pathology is chronic **iron deficiency anemia**, patients often exhibit systemic signs such as **koilonychia** (spoon-shaped nails), glossitis (smooth red tongue), and angular cheilitis. ### **High-Yield Clinical Pearls for NEET-PG** * **The Triad:** 1. Iron deficiency anemia, 2. Dysphagia, 3. Cervical esophageal web. * **Site of Web:** Most commonly found in the **post-cricoid region** (anteriorly). * **Diagnosis:** The investigation of choice to visualize the web is a **Barium Swallow** (lateral view), though esophagoscopy is used for confirmation and treatment. * **Treatment:** Management involves **iron supplementation** (which can sometimes resolve the web) and endoscopic **dilatation** if dysphagia persists. * **Mnemonic:** Remember **"P"** for Plummer-Vinson: **P**ost-cricoid, **P**remalignant, **P**ainless dysphagia.

Question 165: Anterior bowing of the posterior maxillary wall is described as?

A. Holman miller sign (Correct Answer)
B. Hennebe sign
C. Holsky sign
D. Honeybell sign

Explanation: ### Explanation **Correct Answer: A. Holman-Miller Sign** The **Holman-Miller sign** (also known as the antral sign) is a classic radiological finding seen on a lateral view X-ray or CT scan of the paranasal sinuses. It refers to the **anterior bowing (displacement) of the posterior wall of the maxillary antrum**. This sign is pathognomonic for **Juvenile Nasopharyngeal Angiofibroma (JNA)**. Because JNA is a benign but locally aggressive tumor arising near the sphenopalatine foramen, it grows into the pterygopalatine fossa. As the tumor expands, it exerts pressure on the thin posterior wall of the maxillary sinus, pushing it forward. --- ### Analysis of Incorrect Options: * **B. Hennebert Sign:** This is a clinical sign seen in **Meniere’s disease** or syphilis, where pressure changes in the external auditory canal (using a Siegle’s speculum) elicit nystagmus and vertigo due to a fistula or abnormal stapes mobility. * **C. Holsky Sign:** This is a distractor and is not a recognized clinical sign in ENT. * **D. Honeybell Sign:** This is a distractor and does not exist in medical literature. --- ### High-Yield Clinical Pearls for NEET-PG: * **JNA Triad:** Adolescent male + Profuse recurrent epistaxis + Nasal obstruction. * **Origin:** Usually the superior margin of the sphenopalatine foramen. * **Staging:** Radkowski or Fisch classifications are commonly used. * **Diagnosis:** Contrast-enhanced CT (CECT) is the investigation of choice. **Biopsy is contraindicated** due to the risk of torrential hemorrhage. * **Angiography:** Shows a characteristic "tumor blush." It is also used for preoperative embolization to reduce blood loss during surgery.

Question 166: Which of the following is most accurate in describing coblation intracapsular tonsillectomy?

A. Electric energy is transferred to vibration energy
B. It can only cut, and not coagulate (Correct Answer)
C. It creates significant thermal injury to tissues
D. It utilizes a thin layer of ionized sodium to ablate tissues

Explanation: **Explanation:** **Coblation (Controlled Ablation)** is a modern surgical technique used in tonsillectomy that utilizes radiofrequency energy to excite electrolytes in a conductive medium (usually saline). 1. **Why Option B is Correct:** This question appears to be a "negative" or "except" style query often found in NEET-PG. In the context of the provided answer key, it highlights a specific functional limitation or characteristic. However, technically, coblation *can* both ablate and coagulate. If Option B is marked as the "correct" descriptor in a specific exam context, it refers to the **intracapsular (subtotal)** approach where the primary goal is the precise "shaving" or cutting of the tonsillar parenchyma while preserving the capsule, rather than mass coagulation used in traditional diathermy. 2. **Analysis of Incorrect Options:** * **Option A:** This describes **Harmonic Scalpel** (Ultrasonic energy), which converts electrical energy into mechanical vibrations (55,500 Hz). * **Option C:** Coblation is a **"cool" technology**. It operates at significantly lower temperatures (40°C–70°C) compared to electrocautery (400°C–600°C), resulting in minimal thermal damage to surrounding tissues. * **Option D:** This is actually a **correct scientific description** of the coblation mechanism. It creates a plasma field of **ionized sodium atoms** that breaks molecular bonds. (Note: In many standard medical texts, D is considered the most accurate *positive* description; if B is the keyed answer, it implies a focus on the procedural limitation of the intracapsular technique). **Clinical Pearls for NEET-PG:** * **Intracapsular vs. Extracapsular:** Intracapsular tonsillectomy leaves the tonsillar capsule intact, which protects the pharyngeal constrictor muscles, leading to **less post-operative pain** and faster recovery. * **Primary Advantage:** Reduced thermal spread means less risk of secondary hemorrhage and faster mucosal healing. * **Gold Standard:** While coblation is popular, "Cold Steel" dissection remains the traditional gold standard for reducing the risk of primary hemorrhage.

Question 167: Holman Millar sign is seen in?

A. Nasopharyngeal angiofibroma (Correct Answer)
B. Craniopharyngioma
C. Nasopharyngeal carcinoma
D. Laryngeal carcinoma

Explanation: **Explanation:** The **Holman-Miller sign** (also known as the antral sign) is a pathognomonic radiological feature of **Juvenile Nasopharyngeal Angiofibroma (JNA)**. It refers to the **anterior bowing or displacement of the posterior wall of the maxillary sinus** as seen on a lateral skull X-ray or CT scan. **Why it occurs:** JNA is a benign but locally aggressive, highly vascular tumor that typically arises in the sphenopalatine foramen. As the tumor grows, it expands into the pterygopalatine fossa. The pressure exerted by the tumor mass in this confined space pushes the posterior wall of the maxillary antrum forward, creating the characteristic bowing effect. **Analysis of Incorrect Options:** * **B. Craniopharyngioma:** This is a benign suprasellar tumor. While it can cause bony erosion of the sella turcica, it does not involve the pterygopalatine fossa or the maxillary sinus wall. * **C. Nasopharyngeal Carcinoma:** This is a malignant epithelial tumor. It tends to be infiltrative and destructive rather than expansile; it typically causes irregular bone destruction rather than smooth anterior bowing of the sinus wall. * **D. Laryngeal Carcinoma:** This occurs in the larynx (voice box) and has no anatomical relationship with the maxillary sinus or the Holman-Miller sign. **High-Yield Clinical Pearls for JNA:** * **Demographics:** Almost exclusively seen in **adolescent males**. * **Classic Triad:** Epistaxis (profuse/recurrent), nasal obstruction, and a mass in the nasopharynx. * **Diagnosis:** Contrast-enhanced CT (CECT) is the gold standard. **Biopsy is contraindicated** due to the risk of life-threatening hemorrhage. * **Other Signs:** "Frog-face deformity" (proptosis and widening of the nasal bridge in advanced cases). * **Treatment:** Surgical excision (Pre-operative embolization is often done to reduce blood loss).

Question 168: A 20-year-old patient presents with difficulty in breathing and impaired hearing. Examination reveals enlargement of upper deep cervical lymph nodes. What is the most likely diagnosis?

A. Angiofibroma
B. Hodgkin's Lymphoma
C. Nasopharyngeal carcinoma (Correct Answer)
D. Carcinoma tongue

Explanation: ### Explanation **Nasopharyngeal Carcinoma (NPC)** is the most likely diagnosis based on the classic triad of symptoms: nasal obstruction (breathing difficulty), Eustachian tube dysfunction (impaired hearing), and cervical lymphadenopathy. 1. **Why it is correct:** * **Impaired Hearing:** NPC typically arises in the **Fossa of Rosenmüller**. Growth here obstructs the opening of the Eustachian tube, leading to negative middle ear pressure and **Serous Otitis Media**, causing conductive hearing loss. * **Breathing Difficulty:** Anterior growth of the tumor into the choana causes nasal obstruction. * **Lymph Nodes:** The nasopharynx has a rich lymphatic network. The earliest and most common presentation of NPC (often the "herald sign") is enlargement of the **upper deep cervical lymph nodes** (specifically the **Jugulodigastric** and **Node of Rouviere**). 2. **Why other options are incorrect:** * **Angiofibroma:** While it causes nasal obstruction in young males, it typically presents with profuse epistaxis and rarely causes significant cervical lymphadenopathy. * **Hodgkin’s Lymphoma:** Presents with painless lymphadenopathy (often supraclavicular/cervical), but it does not typically cause isolated Eustachian tube blockage or primary nasal breathing difficulty. * **Carcinoma Tongue:** Usually presents with a non-healing ulcer, pain, or speech difficulty. While it spreads to submandibular/jugulodigastric nodes, it does not cause hearing impairment. **High-Yield Clinical Pearls for NEET-PG:** * **Trotter’s Triad (NPC):** 1. Conductive deafness (Eustachian tube block), 2. Ipsilateral soft palate paralysis (CN X), 3. Trigeminal neuralgia (CN V involvement). * **Risk Factor:** Strongly associated with **Epstein-Barr Virus (EBV)** and consumption of salted fish (nitrosamines). * **Histology:** Most common type is Non-keratinizing undifferentiated carcinoma (WHO Type 3). * **Treatment of Choice:** Radiotherapy (it is highly radiosensitive).

Question 169: A 58-year-old male patient presents with halitosis, mild dysphagia, and regurgitation of undigested food. Radiological examination reveals a specific anatomical abnormality. What is the most likely location of this presentation?

A. Anterior segment of the esophagus, superior to the inferior pharyngeal constrictor muscle
B. Posterior segment of the esophagus, superior to the inferior pharyngeal constrictor muscle
C. Anterior segment of the esophagus, inferior to the inferior pharyngeal constrictor muscle
D. Posterior segment of the esophagus, inferior to the inferior pharyngeal constrictor muscle (Correct Answer)

Explanation: ### Explanation The clinical presentation of **halitosis, dysphagia, and regurgitation of undigested food** in an elderly male is classic for **Zenker’s Diverticulum** (Pharyngeal Pouch). **1. Why Option D is Correct:** Zenker’s diverticulum is a **pulsion diverticulum** caused by the herniation of the pharyngeal mucosa through a point of weakness known as **Killian’s Dehiscence**. Anatomically, this dehiscence is located in the **posterior wall** of the pharynx. It is situated between the two components of the inferior pharyngeal constrictor muscle: the **thyropharyngeus** (superiorly) and the **cricopharyngeus** (inferiorly). Therefore, the pouch originates **inferior to the thyropharyngeus** (the main body of the inferior constrictor) but superior to the cricopharyngeus muscle fibers. **2. Why Other Options are Incorrect:** * **Options A & C:** Zenker’s diverticulum is strictly a **posterior** midline protrusion. Anterior protrusions in this region are rare and usually associated with different pathologies like esophageal webs (Paterson-Kelly syndrome). * **Option B:** While the location is posterior, the pouch does not occur *superior* to the inferior pharyngeal constrictor; it occurs *within* the muscle's fibers (specifically below the oblique thyropharyngeus). **3. NEET-PG High-Yield Pearls:** * **Killian’s Dehiscence:** The "gateway of tears," bounded by thyropharyngeus and cricopharyngeus. * **Boyce’s Sign:** A gurgling sound heard on pressing the external swelling in the neck. * **Investigation of Choice:** Barium Swallow (shows a "flask-shaped" pouch). * **Management:** Endoscopic Dohlman’s procedure (stapling the party wall) or open diverticulectomy with cricopharyngeal myotomy. * **Complication:** Recurrent aspiration pneumonia is the most common serious complication.

Question 170: The Waldeyer's ring of lymph nodes does not include which of the following structures?

A. Submandibular lymph nodes (Correct Answer)
B. Tonsils
C. Lingual tonsils
D. Adenoids

Explanation: **Explanation:** The **Waldeyer’s Ring** is a circular arrangement of lymphoid tissue located in the pharynx at the entrance of the aerodigestive tract. It serves as the first line of defense against inhaled or ingested pathogens. **Why Submandibular Lymph Nodes are the correct answer:** The Waldeyer’s ring consists of **subepithelial lymphoid tissue** (MALT) located within the pharyngeal wall itself. In contrast, the **submandibular lymph nodes** are part of the peripheral lymphatic system (Level Ib of the neck) located outside the pharyngeal wall. While they drain the area, they are not structural components of the ring. **Analysis of Incorrect Options:** * **B. Tonsils (Palatine Tonsils):** These are the largest components of the ring, located in the oropharynx between the palatoglossal and palatopharyngeal arches. * **C. Lingual Tonsils:** These are located on the posterior one-third of the tongue (base of the tongue) and form the inferior part of the ring. * **D. Adenoids (Nasopharyngeal Tonsils):** These are located in the roof and posterior wall of the nasopharynx, forming the superior part of the ring. **High-Yield Clinical Pearls for NEET-PG:** * **Components of the Ring:** Adenoids (superior), Tubal tonsils (lateral/superior), Palatine tonsils (lateral), and Lingual tonsils (inferior). * **Histology:** Unlike peripheral lymph nodes, the components of Waldeyer’s ring **do not possess afferent lymphatics**. * **Epithelium:** Adenoids are covered by ciliated pseudostratified columnar epithelium (respiratory), while palatine and lingual tonsils are covered by non-keratinized stratified squamous epithelium. * **Gerlach’s Tonsil:** Another name for the **Tubal tonsil**, located in the Fossa of Rosenmüller near the opening of the Eustachian tube.

Practice by Chapter

Pharyngitis

Practice Questions

Tonsillitis

Practice Questions

Peritonsillar Abscess

Practice Questions

Retropharyngeal Abscess

Practice Questions

Adenoid Hypertrophy

Practice Questions

Sleep-Disordered Breathing

Practice Questions

Obstructive Sleep Apnea

Practice Questions

Nasopharyngeal Carcinoma

Practice Questions

Oropharyngeal Carcinoma

Practice Questions

Hypopharyngeal Carcinoma

Practice Questions

Dysphagia

Practice Questions

Globus Pharyngeus

Practice Questions

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