Diseases of the Pharynx Practice Questions

Q: Which of the following is an indication for tonsillectomy?

Recurrent upper respiratory infection. ### Explanation Tonsillectomy is one of the most common surgical procedures in ENT, and its indications are strictly categorized into absolute and relative indications. **1. Why "Recurrent upper respiratory infection" is correct:** According to the **Paradise Criteria**, recurrent infections are a primary indication for tonsillectomy. Specifically, surgery is indicated if a patient suffers from: * 7 episodes in 1 year, OR * 5 episodes per year for 2 consecutive years, OR * 3 episodes per year for 3 consecutive years. Each episode must be documented with clinical features like fever (>38.3°C), cervical lymphadenopathy, or tonsillar exudate. **2. Why other options are incorrect:** * **Rheumatic Fever and Glomerulonephritis:** Historically, these were considered indications to prevent further streptococcal sequelae. However, current evidence and guidelines (including the American Academy of Otolaryngology) state that tonsillectomy **does not** alter the natural course of these diseases or prevent their recurrence. Therefore, they are no longer considered standard indications for the procedure. **3. High-Yield Clinical Pearls for NEET-PG:** * **Absolute Indications:** 1. Sleep Apnea/Obstructive Sleep Apnea (OSA) due to tonsillar hypertrophy (most common indication in children). 2. Suspicion of malignancy (unilateral tonsillar enlargement). 3. Recurrent peritonsillar abscess (Quinsy). * **Most Common Complication:** Post-operative hemorrhage. * *Primary:* Within 24 hours (usually due to inadequate ligation). * *Secondary:* Between 5–10 days (usually due to infection/sloughing of the clot). * **Eagle’s Syndrome:** Elongated styloid process causing throat pain; tonsillectomy is often the surgical approach for styloidectomy.

Q: Excessive hemorrhage from tonsillectomy is due to injury of which structure?

Paratonsillar vein. **Explanation:** The **paratonsillar vein** (also known as the external palatine vein) is the most common cause of excessive or troublesome primary hemorrhage during tonsillectomy. 1. **Why Paratonsillar Vein is Correct:** This vein descends from the soft palate, crosses the lateral surface of the tonsillar capsule, and enters the pharyngeal venous plexus. During the dissection of the tonsil from its bed, this vein is frequently injured. Because it is a venous structure located in the loose areolar tissue of the tonsillar bed, it can bleed profusely, making it the primary culprit for immediate intraoperative or early postoperative bleeding. 2. **Why Other Options are Incorrect:** * **Tonsillar Artery:** While this is the *main* arterial supply (a branch of the facial artery), it is usually ligated or cauterized during the procedure. It causes significant bleeding if missed, but statistically, the paratonsillar vein is the more frequent source of "excessive" oozing. * **Ascending Palatine Artery & Lingual Artery:** These are nearby vascular structures (branches of the facial and external carotid arteries, respectively) that provide collateral supply. While they contribute to the vascularity of the region, they are not the most common source of surgical hemorrhage. **High-Yield Clinical Pearls for NEET-PG:** * **Primary Hemorrhage:** Occurs during the surgery or within 24 hours. Most common cause: **Paratonsillar vein**. * **Reactionary Hemorrhage:** Occurs within 24 hours (usually due to slipping of a ligature or rise in BP). * **Secondary Hemorrhage:** Occurs 5–10 days post-op. Most common cause: **Infection**. * **Main Arterial Supply:** Tonsillar branch of the **Facial Artery**. * **Safety Landmark:** The **Internal Carotid Artery** lies approximately 2.5 cm posterolateral to the tonsil.

Q: A 79-year-old retired opera singer presents with dysphagia, which has become progressively worse during the last 5 years. He states that he is sometimes aware of a lump on the left side of his neck and that he hears gurgling sounds during swallowing. He sometimes regurgitates food during eating. What is the likely diagnosis?

Zenker's (pharyngoesophageal) diverticulum. **Explanation:** The clinical presentation is classic for **Zenker’s Diverticulum (ZD)**, a pulsion diverticulum occurring through **Killian’s dehiscence** (a weak area between the thyropharyngeal and cricopharyngeal parts of the inferior constrictor muscle). **Why Option D is Correct:** * **Demographics:** Typically affects elderly males (79-year-old). * **Gurgling sounds (Boyce’s sign):** Caused by air and fluid mixing within the diverticulum during swallowing. * **Regurgitation:** Undigested food trapped in the sac is regurgitated, often leading to halitosis (bad breath) or aspiration. * **Neck Lump:** A "lump" that may appear or change size during meals (usually on the left side due to the esophagus's slight leftward inclination). **Why Incorrect Options are Wrong:** * **A. Carcinoma of the esophagus:** While it causes progressive dysphagia in the elderly, it typically presents with significant weight loss and would not explain the gurgling sounds or the regurgitation of *undigested* food from a neck pouch. * **B. Foreign body:** This presents acutely with sudden onset dysphagia and odynophagia, not a 5-year progressive history. * **C. Plummer-Vinson Syndrome:** Characterized by the triad of iron-deficiency anemia, glossitis, and esophageal webs. It primarily affects middle-aged women and does not present with a neck lump or gurgling sounds. **High-Yield Clinical Pearls for NEET-PG:** * **Investigation of Choice:** Barium Swallow (shows a pouch behind the esophagus). * **Contraindication:** Rigid esophagoscopy (high risk of accidental perforation of the thin-walled sac). * **Treatment:** Endoscopic Dohlman’s procedure (stapling the party wall) or open diverticulectomy with cricopharyngeal myotomy. * **Killian-Jamieson Diverticulum:** A similar pouch but located *below* the cricopharyngeus, lateral to the recurrent laryngeal nerve.

Q: Masticator space infection usually results from:

All of the above. **Explanation:** The **masticator space** is a deep neck space enclosed by the splitting of the superficial layer of the deep cervical fascia. It contains the muscles of mastication (masseter, pterygoids, and temporalis), the ramus of the mandible, and the mandibular nerve (V3). **Why "All of the Above" is correct:** 1. **Infections of the last two lower molars (Option A):** This is the **most common cause**. The roots of the 2nd and 3rd lower molars often lie below the attachment of the mylohyoid muscle. Odontogenic infections (pericoronitis or apical abscesses) from these teeth can easily penetrate the thin lingual or buccal cortex of the mandible to enter the submandibular or masticator spaces. 2. **Non-aseptic technique in local anesthesia (Option B):** An **inferior alveolar nerve block** involves injecting anesthetic into the pterygomandibular space (a compartment of the masticator space). If the needle is contaminated, it can directly seed bacteria into this deep space. 3. **Trauma (Option C):** Fractures of the mandibular ramus or angle, as well as penetrating injuries (internal or external), provide a direct pathway for pathogens to enter the fascial compartment. **Clinical Pearls for NEET-PG:** * **Trismus:** This is the hallmark clinical feature of masticator space infection due to irritation of the medial pterygoid and masseter muscles. * **Boundaries:** It is bounded laterally by the masseteric fascia and medially by the pterygoid fascia. * **Ludwig’s Angina vs. Masticator Space:** While Ludwig’s Angina involves the submandibular/sublingual spaces and presents with "woody" swelling of the floor of the mouth, masticator space infections present with severe trismus and swelling over the ramus of the mandible. * **Management:** High-dose antibiotics and surgical drainage (intraoral or extraoral) if an abscess forms.

Q: A patient is complaining of a "lump in the throat" without any difficulty in deglutition. Which muscle is involved in this condition?

Cricopharyngeal muscle. **Explanation:** The clinical presentation described—a sensation of a "lump in the throat" without actual difficulty in swallowing (dysphagia)—is characteristic of **Globus Pharyngeus** (formerly known as Globus Hystericus). **Why the Cricopharyngeal muscle is correct:** The cricopharyngeus muscle forms the **lower esophageal sphincter (LES)** and is the main component of the **Killian’s dehiscence** anatomy. In Globus Pharyngeus, the primary underlying mechanism is often **hypertonicity or spasm** of the cricopharyngeal muscle. This increased resting pressure creates a persistent sensation of a foreign body or "lump." Crucially, because it is a functional sensation rather than a mechanical obstruction, there is no true dysphagia; in fact, the sensation often temporarily improves during the act of swallowing food. **Analysis of Incorrect Options:** * **B. Thyropharyngeus muscle:** This is the upper part of the inferior constrictor. While it works with the cricopharyngeus during swallowing, it is not the site of localized spasm associated with the "lump" sensation. * **C. Stylopharyngeus muscle:** This is a longitudinal muscle (innervated by the Glossopharyngeal nerve) that elevates the larynx and pharynx. It is not involved in the tonic closure of the esophageal inlet. **NEET-PG High-Yield Pearls:** * **Globus Pharyngeus:** Often associated with **GERD/LPR** (Laryngopharyngeal Reflux) or psychological stress. * **Killian’s Dehiscence:** A potential space between the thyropharyngeus and cricopharyngeus; it is the site of herniation for **Zenker’s Diverticulum**. * **Diagnosis of Exclusion:** Before diagnosing Globus, organic causes (like malignancy or post-cricoid webs) must be ruled out via endoscopy or barium swallow if red flags are present.

Q: Eagle syndrome is also known as:

Styalgia. **Explanation:** **Eagle Syndrome**, also known as **Styalgia** or Styloid Process Syndrome, occurs due to an **elongated styloid process** (greater than 30 mm) or calcification of the stylohyoid ligament. This anatomical variation causes irritation of cranial nerves (V, VII, IX, X) or compression of the carotid arteries. Patients typically present with a dull, nagging facial pain, foreign body sensation in the throat (globus), and odynophagia, often triggered by head rotation or swallowing. **Analysis of Options:** * **A. Styalgia (Correct):** This is the synonymous term for Eagle Syndrome, derived from "Styloid" and "Algia" (pain). * **B. Ludwig’s Angina:** This is a rapidly spreading cellulitis of the submandibular, sublingual, and submental spaces, usually of dental origin. It is a life-threatening emergency due to potential airway obstruction. * **C. Pharyngeal Bursitis (Thornwaldt’s Cyst):** This refers to a chronic inflammation of the nasopharyngeal bursa located in the midline of the posterior nasopharyngeal wall. * **D. Amaurosis:** This refers to partial or total loss of vision without an apparent lesion in the eye itself (e.g., Amaurosis fugax). **High-Yield Clinical Pearls for NEET-PG:** * **Diagnosis:** Confirmed by palpating the styloid process in the tonsillar fossa (reproduces pain) and imaging (Orthopantomogram/OPG or CT scan). * **Treatment:** The definitive treatment is **Styloidectomy** (surgical shortening of the process), which can be performed via a trans-oral or external cervical approach. * **History:** Often follows a history of **tonsillectomy**, as scar tissue can rub against the elongated process.

Q: In allergic pharyngitis, what causes the granularity observed in the posterior pharynx?

Hyperplasia of the submucosal lymphoid tissue. **Explanation:** The posterior pharyngeal wall is rich in **submucosal lymphoid follicles**, which form a part of Waldeyer’s ring (specifically the lateral pharyngeal bands and scattered nodules). In cases of chronic irritation—such as **allergic pharyngitis**, chronic sinusitis (post-nasal drip), or acid reflux—these lymphoid follicles undergo **reactive hyperplasia**. This cellular proliferation causes the follicles to become enlarged and elevated, resulting in the characteristic "cobblestone" or **granular appearance** seen on clinical examination. **Analysis of Options:** * **Option A (Hyperplasia of the mucous membrane):** While the mucosa may appear congested or edematous, the specific "granules" are discrete elevations caused by underlying lymphoid tissue, not a generalized thickening of the epithelium. * **Option B (Hyperplasia of the sebaceous glands):** Sebaceous glands are not typically found in the pharyngeal mucosa. This is a distractor (likely confused with Fordyce spots, which occur in the oral mucosa). * **Option D (Inspissated mucous):** Thickened mucus may cling to the pharynx, but it can be cleared by coughing or swallowing. Granularity refers to fixed anatomical elevations within the tissue. **Clinical Pearls for NEET-PG:** * **Granular Pharyngitis** is most commonly associated with **Chronic Sinusitis** (due to persistent post-nasal drip) and **Mouth Breathing**. * The lateral pharyngeal bands may also undergo hyperplasia, known as **Lateral Pharyngitis**. * **Treatment focus:** In allergic pharyngitis, the primary management involves identifying the allergen and using antihistamines or nasal steroid sprays rather than local throat treatments.

Q: Which of the following is NOT an example of velopharyngeal insufficiency?

Cleft lip. ### Explanation **Velopharyngeal Insufficiency (VPI)** is a structural defect where the soft palate (velum) cannot physically close against the posterior pharyngeal wall. This failure of the "velopharyngeal valve" leads to hypernasal speech (rhinolalia aperta) and nasal regurgitation of food. **Why Cleft Lip is the Correct Answer:** A **Cleft Lip** is an isolated primary palate deformity involving the lip and/or the alveolar ridge. It does not involve the soft palate or the pharyngeal musculature. Therefore, the mechanism of velopharyngeal closure remains intact. While it often co-occurs with a cleft palate, an isolated cleft lip does not cause VPI. **Analysis of Incorrect Options:** * **Cleft Palate:** This is the most common cause of VPI. The structural gap in the hard or soft palate prevents the formation of a seal between the oropharynx and nasopharynx. * **Bifid Uvula:** This is often considered the mildest form of a **Submucous Cleft Palate**. In these cases, while the mucosa may look intact, the underlying levator veli palatini muscles are malinserted (forming the "V" shaped Notch), leading to structural insufficiency. * **Palatal Paralysis:** This occurs due to lesions of the Vagus nerve (CN X) or the Pharyngeal plexus (e.g., in Diphtheria or Bulbar palsy). Although the structure is present, the inability of the muscles to elevate the palate results in functional insufficiency. **High-Yield Clinical Pearls for NEET-PG:** * **Passavant’s Ridge:** A mucosal ridge formed by the contraction of the upper fibers of the **palatopharyngeus** muscle; it aids in velopharyngeal closure. * **Rhinolalia Aperta:** The "open" nasal speech heard in VPI (e.g., cleft palate). * **Rhinolalia Clausa:** The "closed" hyponasal speech heard in nasal obstruction (e.g., adenoid hypertrophy or DNS). * **Gutzmann’s Test:** Used to diagnose VPI; the patient's speech improves when the nose is manually pinched.

Q: A 12-year-old child presents with a unilateral pink nasal mass. What is the most important investigation prior to undertaking surgery?

Contrast Computed Tomography (CT) scan. ### Explanation **Correct Answer: D. Contrast Computed Tomography (CT) scan** **Medical Concept:** The clinical presentation of a **unilateral pink nasal mass** in a young patient is highly suspicious for **Juvenile Nasopharyngeal Angiofibroma (JNA)**. JNA is a benign but locally aggressive, highly vascular tumor. The most critical step prior to surgery is a **Contrast-Enhanced CT (CECT) scan** (or MRI) to assess the extent of the tumor and its vascularity. A CT scan is the gold standard for evaluating bony involvement, particularly the widening of the pterygopalatine fossa (the **Holman-Miller sign** or antral sign), which is pathognomonic for JNA. Pre-operative imaging is essential to plan the surgical approach and to consider preoperative embolization to reduce intraoperative bleeding. **Why other options are incorrect:** * **Biopsy (C) & FNAC (B):** These are **strictly contraindicated** in suspected JNA. Because the tumor is extremely vascular and lacks a true capsule, any attempt at tissue sampling can lead to profuse, life-threatening epistaxis. Diagnosis is primarily clinical and radiological. * **Ultrasound (A):** Ultrasound has no role in evaluating deep-seated nasopharyngeal masses as it cannot penetrate the bony structures of the skull base. **Clinical Pearls for NEET-PG:** * **Classic Triad of JNA:** Adolescent male + Profuse recurrent epistaxis + Nasal obstruction. * **Holman-Miller Sign:** Anterior bowing of the posterior wall of the maxillary sinus seen on CT. * **Origin:** Usually arises from the superior margin of the sphenopalatine foramen. * **Investigation of Choice:** Contrast CT (for bone/extent) or Digital Subtraction Angiography (DSA) if embolization is planned. * **Treatment:** Surgical excision (e.g., Transpalatal, Endoscopic, or Maxillary swing approaches) preceded by hormonal therapy or embolization.

Q: Long-standing obstruction due to enlarged tonsils and adenoids can cause:

Cor pulmonale. **Explanation:** The correct answer is **Cor pulmonale**. **Pathophysiology:** Long-standing upper airway obstruction due to adenotonsillar hypertrophy leads to a state of chronic alveolar hypoventilation. This results in **chronic hypoxia** and **hypercapnia**. Hypoxia is a potent stimulus for **pulmonary vasoconstriction** (Euler-Liljestrand reflex). Persistent vasoconstriction leads to pulmonary arterial hypertension, which increases the afterload on the right ventricle. Over time, this causes right ventricular hypertrophy and eventual right-sided heart failure, known as **Cor pulmonale**. **Analysis of Incorrect Options:** * **A & D (Left Ventricular Hypertrophy & Cardiac Ischaemia):** Adenotonsillar obstruction primarily affects the pulmonary circulation and the right side of the heart. LVH is typically a result of systemic hypertension or aortic stenosis, not pulmonary issues. Ischaemia is related to coronary artery disease. * **B (Bundle Branch Block):** While severe right ventricular strain can sometimes lead to right bundle branch block (RBBB), it is a secondary conduction finding rather than the primary clinical consequence of the obstruction. **Clinical Pearls for NEET-PG:** * **Adenoid Facies:** Characterized by an open mouth, dull expression, hitched-up upper lip, crowded teeth, and a high-arched palate due to chronic mouth breathing. * **Sleep Study:** Polysomnography is the gold standard for diagnosing Obstructive Sleep Apnea (OSA) in these patients. * **Treatment:** Adenotonsillectomy is the definitive treatment and can often reverse early-stage pulmonary hypertension in children. * **High-Yield Association:** Always associate chronic upper airway obstruction in children with **Pulmonary Hypertension** and **Right Heart Failure**.

Question 1

Which of the following is an indication for tonsillectomy?

Accepted Answer

Recurrent upper respiratory infection

Answer

Rheumatic fever

Answer

Glomerulonephritis

Answer

All

Question 2

Excessive hemorrhage from tonsillectomy is due to injury of which structure?

Accepted Answer

Paratonsillar vein

Answer

Ascending palatine artery

Answer

Tonsillar artery

Answer

Lingual artery

Question 3

A 79-year-old retired opera singer presents with dysphagia, which has become progressively worse during the last 5 years. He states that he is sometimes aware of a lump on the left side of his neck and that he hears gurgling sounds during swallowing. He sometimes regurgitates food during eating. What is the likely diagnosis?

Accepted Answer

Zenker's (pharyngoesophageal) diverticulum

Answer

Carcinoma of the esophagus

Answer

Foreign body in the esophagus

Answer

Plummer-Vinson (Kelly-Patteson) syndrome

Question 4

Masticator space infection usually results from:

Accepted Answer

All of the above

Answer

Infections of the last two lower molars

Answer

Non-aseptic technique in local anesthesia

Answer

External or internal trauma to the mandibular angle region

Question 5

A patient is complaining of a "lump in the throat" without any difficulty in deglutition. Which muscle is involved in this condition?

Accepted Answer

Cricopharyngeal muscle

Answer

Thyropharyngeus muscle

Answer

Stylopharyngeus muscle

Answer

None

Question 6

Eagle syndrome is also known as:

Accepted Answer

Styalgia

Answer

Ludwig's Angina

Answer

Pharyngeal bursitis

Answer

Amaurosis

Question 7

In allergic pharyngitis, what causes the granularity observed in the posterior pharynx?

Accepted Answer

Hyperplasia of the submucosal lymphoid tissue

Answer

Hyperplasia of the mucous membrane

Answer

Hyperplasia of the sebaceous glands

Answer

Inspissated mucous

Question 8

Which of the following is NOT an example of velopharyngeal insufficiency?

Accepted Answer

Cleft lip

Answer

Cleft palate

Answer

Bifid uvula

Answer

Palatal paralysis

Question 9

A 12-year-old child presents with a unilateral pink nasal mass. What is the most important investigation prior to undertaking surgery?

Accepted Answer

Contrast Computed Tomography (CT) scan

Answer

Ultrasound

Answer

Fine Needle Aspiration Cytology (FNAC)

Answer

Biopsy

Question 10

Long-standing obstruction due to enlarged tonsils and adenoids can cause:

Accepted Answer

Cor pulmonale

Answer

Left ventricular hypertrophy

Answer

Bundle branch block

Answer

Cardiac ischaemia

Diseases of the Pharynx — MCQs

Diseases of the Pharynx — MCQs

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