Diseases of the Pharynx Practice Questions

Q: A 65-year-old patient presents with dysphagia, regurgitation, and halitosis. A barium swallow shows diverticula at the upper esophagus. Which of the following statements is FALSE about this condition?

It is more common in women.. ### Explanation The clinical presentation of dysphagia, regurgitation, and halitosis in an elderly patient, combined with a barium swallow showing a diverticulum, is diagnostic of **Zenker’s Diverticulum** (Pharyngeal Pouch). **1. Why Option A is the Correct (False) Statement:** Zenker’s diverticulum is significantly **more common in men** than in women (ratio approx. 2:1 or 3:1). It typically affects the elderly, usually in the 7th or 8th decade of life. **2. Analysis of Other Options:** * **Option B (Killian’s Triangle):** This is a true statement. The pouch is a **pulsion diverticulum** (mucosal herniation) occurring through a weak area between the horizontal fibers of the **cricopharyngeus** and the oblique fibers of the **thyropharyngeus** (inferior constrictor). * **Option C (Left-sided deviation):** This is true. Although it originates in the midline posteriorly, as the sac enlarges, it usually deviates to the **left side** because the esophagus lies slightly to the left of the midline and there is more space in the left prevertebral area. * **Option D (Treatment):** This is true. Management involves addressing the underlying cause (cricopharyngeal spasm) via **cricopharyngeal myotomy**. Small sacs may be left alone after myotomy, but larger ones require excision (**diverticulectomy**) or suspension (**diverticulopexy**). Endoscopic Dohlman’s procedure is also a modern alternative. ### High-Yield Clinical Pearls for NEET-PG: * **Boyce’s Sign:** A gurgling sound heard on the side of the neck when external pressure is applied to the pouch. * **Diagnosis:** **Barium Swallow** is the investigation of choice. * **Contraindication:** Rigid esophagoscopy or NG tube insertion should be avoided or done with extreme caution due to the high risk of **perforation**. * **Complications:** Aspiration pneumonia (most common) and rarely, Squamous Cell Carcinoma within the pouch.

Q: A coin is lodged in the esophagus of an asymptomatic 3-year-old female child. What is the recommended treatment?

Endoscopic removal after 24 hours. **Explanation:** The management of esophageal foreign bodies depends on the **nature of the object**, the **location**, and the **symptomatology** of the patient. **1. Why Option A is correct:** For a **blunt object** (like a coin) lodged in the esophagus of an **asymptomatic** child, a period of observation for up to **24 hours** is recommended. Many coins pass spontaneously into the stomach during this window. If the coin remains in the esophagus after 24 hours, endoscopic removal is indicated to prevent mucosal ulceration or stricture formation. **2. Why other options are incorrect:** * **Option B:** Immediate removal is reserved for **symptomatic** patients (drooling, respiratory distress), **sharp objects**, **button batteries** (due to risk of corrosive injury), or if the airway is compromised. * **Option C:** Waiting for 48 hours increases the risk of pressure necrosis and esophageal perforation. The standard observation limit for esophageal foreign bodies is 24 hours. * **Option D:** Blindly pushing the object with a Ryle’s tube is contraindicated as it can cause esophageal trauma or lead to accidental aspiration into the airway. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site of lodgment:** Cricopharyngeus muscle (Upper Esophageal Sphincter). * **Radiology:** On X-ray (AP view), a coin in the **esophagus** appears as a full circle ("face-on"), whereas a coin in the **trachea** appears as a thin line (on edge). * **Button Battery:** This is a **surgical emergency** if lodged in the esophagus; it can cause liquefactive necrosis and perforation within 2 hours. * **Post-Stomach:** Once a coin passes the pylorus into the stomach, it usually passes through the entire GI tract spontaneously. Intervention is only needed if it remains in the stomach for >3-4 weeks.

Q: A 14-year-old female presents with quinsy in the right side of her oropharynx. During surgical removal of the pathologic tissue or incision and drainage of the area, which of the following arteries is at greatest risk?

Facial artery branch. **Explanation:** The clinical scenario describes **Quinsy (Peritonsillar Abscess)**, which occurs in the peritonsillar space between the palatine tonsil capsule and the superior constrictor muscle. **Why the correct answer is right:** The **tonsillar artery**, which is a branch of the **Facial artery**, is the main arterial supply to the palatine tonsil. It pierces the superior constrictor muscle to enter the lower pole of the tonsil. During incision and drainage or tonsillectomy, this artery (or its parent facial artery, which lies just lateral to the constrictor) is at the highest risk of injury, leading to significant hemorrhage. Additionally, the **external palatine vein** (paratonsillar vein) is a common source of bleeding in this region. **Why the incorrect options are wrong:** * **Lingual artery:** While it supplies the tongue and gives off dorsal lingual branches to the tonsil, it lies deeper and more inferiorly, making it less vulnerable during a superficial drainage of a peritonsillar abscess. * **Superior laryngeal artery:** This is a branch of the superior thyroid artery. It pierces the thyrohyoid membrane to supply the larynx; it is anatomically distant from the oropharyngeal tonsillar fossa. * **Ascending pharyngeal artery:** Although it contributes to the tonsillar blood supply via its pharyngeal branches, it is located more medially on the pharyngeal wall and is not the primary vessel at risk compared to the facial artery branches. **NEET-PG High-Yield Pearls:** * **Tonsillar Bed:** Formed mainly by the **Superior Constrictor** and Styloglossus muscles. * **Nerve at Risk:** The **Glossopharyngeal nerve (CN IX)** lies in the tonsillar bed and can be injured, leading to loss of taste/sensation in the posterior 1/3 of the tongue. * **Most common vessel for primary hemorrhage:** Tonsillar artery (branch of Facial). * **Most common vessel for venous hemorrhage:** External palatine vein.

Q: A 15-year-old boy presents with unilateral nasal blockade, a mass in the cheek, and epistaxis. What is the likely diagnosis?

Nasopharyngeal angiofibroma. **Explanation:** The clinical presentation of a **15-year-old boy** with **unilateral nasal obstruction, epistaxis, and a cheek mass** is a classic "spot diagnosis" for **Juvenile Nasopharyngeal Angiofibroma (JNA)**. **Why JNA is the Correct Answer:** JNA is a benign but locally aggressive, highly vascular tumor that occurs almost exclusively in **adolescent males**. The tumor typically originates at the sphenopalatine foramen. As it grows, it expands into the pterygopalatine fossa, which causes the characteristic **"cheek swelling"** (Frog-face deformity). The hallmark symptoms are painless, progressive unilateral nasal blockade and recurrent, profuse epistaxis. **Why Other Options are Incorrect:** * **Nasopharyngeal Carcinoma:** While it can cause nasal obstruction and epistaxis, it is more common in older adults (bimodal peak) and typically presents with early cervical lymphadenopathy and serous otitis media (due to Eustachian tube blockage). * **Inverted Papilloma:** This is a benign epithelial tumor usually seen in the 40–60 age group. It arises from the lateral nasal wall and rarely presents with a cheek mass or profuse epistaxis. **High-Yield Clinical Pearls for NEET-PG:** * **Holman-Miller Sign (Antral Sign):** Anterior bowing of the posterior wall of the maxillary sinus seen on lateral X-ray/CT. * **Diagnosis:** Contrast-enhanced CT (CECT) is the investigation of choice. **Biopsy is contraindicated** due to the risk of torrential hemorrhage. * **Treatment:** Surgical excision is the mainstay, often preceded by **pre-operative embolization** to reduce blood loss. * **Classification:** Fisch or Radkowski classifications are used to stage the tumor.

Q: Pain from a malignant lesion in the pyriform fossa is referred to the ear via which nerve?

Vagus nerve. **Explanation:** The phenomenon of referred pain occurs when sensory fibers from two different anatomical sites converge on the same nucleus in the brainstem. In the case of the **pyriform fossa**, the correct answer is the **Vagus nerve (CN X)**. 1. **Why Vagus nerve is correct:** The pyriform fossa is part of the laryngopharynx (hypopharynx). Sensory innervation to the mucous membrane of the laryngopharynx is provided by the **Internal Laryngeal Nerve**, a branch of the Superior Laryngeal Nerve, which is itself a branch of the Vagus nerve. The Vagus nerve also provides sensory innervation to the external auditory canal and part of the pinna via **Arnold’s nerve (Auricular branch of Vagus)**. When a malignancy irritates the internal laryngeal nerve, the brain misinterprets the signals as coming from the ear. 2. **Why other options are incorrect:** * **Glossopharyngeal nerve (CN IX):** While this nerve also causes referred ear pain (via **Jacobson’s nerve**), it carries sensation from the **oropharynx** (e.g., tonsillitis or tonsillar fossa malignancy). * **Brachial plexus:** This involves spinal nerves C5-T1 and supplies the upper limb; it has no role in pharyngeal sensation or referred otalgia. **High-Yield Clinical Pearls for NEET-PG:** * **Referred Otalgia Summary:** * **Oropharynx/Tonsil/Base of Tongue:** Referred via CN IX (Jacobson’s Nerve). * **Laryngopharynx/Pyriform Fossa/Larynx:** Referred via CN X (Arnold’s Nerve). * **Nasopharynx:** Referred via CN V3 (Auriculotemporal Nerve). * **TMJ/Lower Teeth:** Referred via CN V3. * **Clinical Significance:** In an elderly patient or a chronic smoker presenting with "normal-looking" ears but complaining of earache (referred otalgia), always perform a fiberoptic laryngoscopy to rule out a hidden malignancy in the pyriform fossa or base of tongue.

Q: All are true about Parapharyngeal abscess, except?

Midline swelling. **Explanation:** The **Parapharyngeal space** (also known as the pharyngomaxillary or lateral pharyngeal space) is an inverted pyramid-shaped potential space located lateral to the pharynx. **1. Why "Midline Swelling" is the correct (False) statement:** A parapharyngeal abscess typically presents as a **lateral neck swelling** (below the angle of the mandible) and a **medial displacement of the lateral pharyngeal wall and tonsil**. Because the space is situated lateral to the constrictor muscles, the swelling is inherently eccentric. In contrast, a **Retropharyngeal abscess** is the classic cause of a midline or paramedian bulge in the posterior pharyngeal wall. **2. Analysis of other options:** * **Abscess in pharyngomaxillary space:** This is the anatomical synonym for the parapharyngeal space. * **Trismus:** This occurs due to irritation and spasm of the **medial pterygoid muscle**, which forms the lateral boundary of the anterior compartment of this space. * **Torticollis:** Inflammation of the prevertebral muscles or irritation of the accessory nerve can lead to a "wry neck" or tilting of the head toward the unaffected side to relieve pressure. **Clinical Pearls for NEET-PG:** * **Source of Infection:** Most commonly follows acute tonsillitis, dental infections (lower molars), or Bezold’s abscess. * **Compartments:** Divided by the styloid process into **Pre-styloid** (contains fat, nodes, and pterygoids; presents with trismus) and **Post-styloid** (contains Carotid artery, IJV, and CN IX-XII; presents with neurological deficits but NO trismus). * **Complications:** The most dreaded complication is **Internal Jugular Vein Thrombophlebitis (Lemierre’s Syndrome)** or Carotid artery erosion.

Q: The sinus of Morgagni is present in which of the following locations?

Nasopharynx. ### Explanation The **Sinus of Morgagni** is a critical anatomical space located in the **Nasopharynx**. It is a gap in the pharyngeal wall situated between the upper border of the **Superior Constrictor muscle** and the **Base of the Skull**. #### Why Nasopharynx is Correct: The pharyngeal wall is not a continuous muscular layer. In the nasopharynx, there is a deficiency in the muscle layer where the Superior Constrictor does not reach the skull base. This gap is closed by the **pharyngobasilar fascia**. The Sinus of Morgagni serves as a conduit for three important structures to enter the pharynx: 1. **Eustachian tube** (Cartilaginous portion) 2. **Levator veli palatini** muscle 3. **Ascending palatine artery** (branch of the facial artery) #### Why Other Options are Incorrect: * **Oropharynx:** This region lies below the soft palate. The gaps here (e.g., between superior and middle constrictors) transmit the stylopharyngeus muscle and glossopharyngeal nerve, but are not termed the Sinus of Morgagni. * **Hypopharynx/Laryngopharynx:** These terms are synonymous. This region contains the **Killian’s Dehiscence** (a potential site for Zenker’s diverticulum) between the thyropharyngeus and cricopharyngeus muscles, but not the Sinus of Morgagni. #### NEET-PG High-Yield Pearls: * **Passavant’s Ridge:** A mucosal ridge formed by the palatopharyngeal sphincter in the nasopharynx during swallowing. * **Fossa of Rosenmüller:** A deep recess located posterior to the Eustachian tube orifice in the nasopharynx; it is the most common site of origin for **Nasopharyngeal Carcinoma**. * **Trotter’s Triad:** Associated with nasopharyngeal tumors invading the Sinus of Morgagni, characterized by: 1. Conductive deafness (Eustachian tube blockage) 2. Ipsilateral facial pain/temporoparietal neuralgia (V2/V3 involvement) 3. Palatal paralysis (Levator veli palatini involvement)

Question 1

A 65-year-old patient presents with dysphagia, regurgitation, and halitosis. A barium swallow shows diverticula at the upper esophagus. Which of the following statements is FALSE about this condition?

Accepted Answer

It is more common in women.

Answer

It arises from Killian's triangle.

Answer

It usually deviates from the midline, mostly to the left.

Answer

Treatment involves myotomy of the cricopharyngeus muscle and excision of the sac.

Question 2

A coin is lodged in the esophagus of an asymptomatic 3-year-old female child. What is the recommended treatment?

Accepted Answer

Endoscopic removal after 24 hours

Answer

Immediate endoscopic removal

Answer

Wait for 48 hours

Answer

Dislodge the coin into the stomach by inserting a Ryles tube

Question 3

A 14-year-old female presents with quinsy in the right side of her oropharynx. During surgical removal of the pathologic tissue or incision and drainage of the area, which of the following arteries is at greatest risk?

Accepted Answer

Facial artery branch

Answer

Lingual artery

Answer

Superior laryngeal artery

Answer

Ascending pharyngeal artery

Question 4

What is the most common cause of parapharyngeal abscess in adults?

Accepted Answer

Tooth extraction

Answer

Tuberculosis

Answer

Tonsillitis

Answer

Lymphadenitis

Question 5

A 15-year-old boy presents with unilateral nasal blockade, a mass in the cheek, and epistaxis. What is the likely diagnosis?

Accepted Answer

Nasopharyngeal angiofibroma

Answer

Nasopharyngeal carcinoma

Answer

Inverted papilloma

Answer

None of the above

Question 6

Pain from a malignant lesion in the pyriform fossa is referred to the ear via which nerve?

Accepted Answer

Vagus nerve

Answer

Glossopharyngeal nerve

Answer

Brachial plexus

Answer

None of the above

Question 7

Tonsillectomy is recommended if the number of acute infections in a year exceeds:

Accepted Answer

3

Answer

4

Answer

5

Answer

6

Question 8

All are true about Parapharyngeal abscess, except?

Accepted Answer

Midline swelling

Answer

Abscess in pharyngomaxillary space

Answer

Trismus

Answer

Torticollis

Question 9

The sinus of Morgagni is present in which of the following locations?

Accepted Answer

Nasopharynx

Answer

Oropharynx

Answer

Hypopharynx

Answer

Laryngopharynx

Question 10

Which of the following is NOT true for adenoid hypertrophy?

Accepted Answer

CT scan should be done to assess size

Answer

Mouth breathing is seen

Answer

High arched palate is present

Answer

There is failure to thrive

Diseases of the Pharynx — MCQs

Diseases of the Pharynx — MCQs

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