Diseases of the Pharynx Practice Questions

Q: Fiberoptic endoscopy is contraindicated in which of the following conditions?

Aneurysm of the aortic arch. **Explanation:** The correct answer is **Aneurysm of the aortic arch**. **Why it is the correct answer:** Fiberoptic endoscopy (specifically esophagoscopy or bronchoscopy) involves the passage of a scope through the pharynx and esophagus. The esophagus lies in close anatomical proximity to the arch of the aorta. In patients with an aortic aneurysm, the vessel wall is thin, dilated, and fragile. The mechanical pressure of the endoscope, or the physiological stress (tachycardia and hypertension) induced by the procedure, carries a high risk of **aneurysmal rupture**, which is almost always fatal. Therefore, it is considered a classic contraindication. **Analysis of incorrect options:** * **Children:** Endoscopy is not contraindicated in children; it is frequently performed for foreign body removal or diagnostic purposes using pediatric-sized flexible or rigid scopes under general anesthesia. * **Cervical Spondylosis:** While severe spondylosis (osteophytes) may make **rigid** endoscopy difficult or risky due to limited neck extension, **fiberoptic (flexible)** endoscopy is generally safe as it does not require neck maneuvering. * **Hemoptysis:** Endoscopy (Bronchoscopy) is actually a primary diagnostic and therapeutic tool used to localize the site of bleeding in hemoptysis. **High-Yield Clinical Pearls for NEET-PG:** * **Absolute Contraindications for Esophagoscopy:** Recent myocardial infarction (MI), suspected perforated viscus, and unstable cervical spine. * **Killian's Dehiscence:** The most common site for esophageal perforation during endoscopy, located between the thyropharyngeus and cricopharyngeus muscles. * **Aortic Arch Anatomy:** It crosses the esophagus at the level of the **T4 vertebra**, which is a common site for physiological constriction and potential impaction of foreign bodies.

Q: Which of the following statements are true about Quinke disease?

Peritonsillar abscess. **Explanation:** **Quinke Disease** (also known as Quincke’s edema) is a clinical condition characterized by isolated, rapid-onset **edema of the uvula**. It is typically considered a localized form of angioedema. 1. **Why Option D is the most accurate clinical definition:** Quinke disease specifically refers to the swelling of the uvula caused by increased vascular permeability. It can be triggered by allergies, trauma, inhalation of irritants, or thermal injury. Patients often present with a "foreign body" sensation in the throat, gagging, or muffled speech. 2. **Analysis of Options:** * **Option B (Peritonsillar Abscess):** While the provided key marks this as correct, in standard ENT textbooks, Quinke disease is the specific term for **isolated uvular edema**. However, in some clinical contexts or older question banks, it is associated with the collateral edema seen in a **Peritonsillar Abscess (Quinsy)**. In a Quinsy, the uvula is often edematous and pushed to the contralateral side. * **Option A (Bacterial Infection):** Quinke disease is primarily an angioneurotic/allergic phenomenon, not a primary bacterial infection (though infection can be a secondary trigger). * **Option C (Vocal Cord Edema):** This refers to Reinke’s edema or laryngeal edema, which involves the glottic area and causes hoarseness, unlike the oropharyngeal involvement in Quinke disease. **High-Yield Clinical Pearls for NEET-PG:** * **Quinsy (Peritonsillar Abscess):** Collection of pus between the tonsillar capsule and the superior constrictor muscle. Key signs: Trismus, "Hot potato" voice, and uvular deviation. * **Management of Quinke Disease:** Usually treated with steroids, antihistamines, and occasionally adrenaline if airway compromise is suspected. * **Differential Diagnosis:** Must be distinguished from **Epiglottitis** (Thumb sign on X-ray) which is a life-threatening emergency.

Q: A 10-year-old child presents with recurrent epistaxis. What is the most likely cause?

Angiofibroma. **Explanation:** **Juvenile Nasopharyngeal Angiofibroma (JNA)** is the most likely cause in this scenario. It is a benign but locally aggressive, highly vascular tumor that typically affects **adolescent males** (usually between 10–20 years of age). The hallmark presentation is **painless, profuse, and recurrent epistaxis** often accompanied by progressive nasal obstruction. Because the tumor is non-encapsulated and rich in blood vessels (lacking a muscular coat), it bleeds easily upon provocation or spontaneously. **Analysis of Incorrect Options:** * **A & B (Hypertension and Arteriosclerosis):** These are common causes of epistaxis in the **elderly** population. Hypertension is the most frequent systemic cause of epistaxis in adults, while arteriosclerotic vessels fail to contract, leading to persistent bleeding. They are extremely rare causes in a 10-year-old. * **D (Surgery):** While postoperative bleeding is a known complication of nasal surgeries (like septoplasty or FESS), it is a situational cause rather than a primary diagnosis for recurrent, spontaneous epistaxis in a child. **NEET-PG High-Yield Pearls:** * **Origin:** Most commonly arises from the superior margin of the **sphenopalatine foramen**. * **Classic Sign:** **Holman-Miller Sign** (Antral Sign) – anterior bowing of the posterior wall of the maxillary sinus seen on CT/MRI. * **Diagnosis:** Contrast-enhanced CT (CECT) is the investigation of choice. **Biopsy is contraindicated** due to the risk of torrential hemorrhage. * **Blood Supply:** Primarily from the **Internal Maxillary Artery** (branch of the External Carotid). * **Treatment:** Surgical excision (often preceded by preoperative embolization to reduce blood loss).

Q: An 8-year-old child, who underwent adenoidectomy one year ago, now presents with middle ear effusion. What is the most probable diagnosis?

Recurrence. **Explanation:** The correct answer is **Recurrence**. The adenoids are located in the nasopharynx, in close proximity to the opening of the **Eustachian tube**. Adenoid hypertrophy is a common cause of Eustachian tube dysfunction, leading to negative middle ear pressure and **Otitis Media with Effusion (OME)**. While an adenoidectomy is performed to resolve these issues, the lymphoid tissue is not encapsulated and cannot be completely removed. In young children (especially those under 8), residual lymphoid tissue can undergo compensatory hypertrophy, leading to **recurrence**. This regrowth obstructs the Eustachian tube orifice again, resulting in the reappearance of middle ear effusion. **Analysis of Incorrect Options:** * **Grisel Syndrome:** This is a rare non-traumatic subluxation of the atlanto-axial joint (C1-C2) following inflammatory processes in the neck or ENT surgeries (like adenoidectomy). It presents with torticollis, not middle ear effusion. * **Velopharyngeal Insufficiency (VPI):** This occurs when the soft palate cannot close against the posterior pharyngeal wall. While it is a complication of adenoidectomy (causing hypernasal speech), it does not cause middle ear effusion. * **Rhinolalia Clausa:** This refers to "closed nose" speech caused by nasal obstruction (e.g., large adenoids). Post-adenoidectomy, patients usually develop *Rhinolalia Aperta* (open nasal speech) if VPI occurs. **Clinical Pearls for NEET-PG:** * **Most common cause of OME in children:** Adenoid hypertrophy. * **Indications for Adenoidectomy:** Recurrent OME, chronic rhinosinusitis, and Obstructive Sleep Apnea (OSA). * **Regrowth risk:** Higher in children operated on before age 4 or those with allergic rhinitis. * **Investigation of choice for recurrence:** Diagnostic nasal endoscopy or lateral view X-ray of the nasopharynx.

Q: The most likely cause of persistent snoring and mouth breathing in a child is:

Adenoid enlargement. ### Explanation **Correct Option: B. Adenoid Enlargement** The adenoids (nasopharyngeal tonsils) are located in the roof and posterior wall of the nasopharynx. In children, physiological hypertrophy occurs between ages 3 and 7. When pathologically enlarged, they obstruct the posterior choanae, leading to **obligate mouth breathing** and **snoring** due to vibration of the soft palate. This is the most common cause of pediatric nasal obstruction. Chronic obstruction leads to the characteristic "Adenoid Facies" (dull expression, open mouth, crowded teeth, and high-arched palate). **Analysis of Incorrect Options:** * **A. Tonsillar enlargement:** While palatine tonsil hypertrophy can cause snoring and Obstructive Sleep Apnea (OSA), it primarily affects the oropharynx. It is rarely the *sole* cause of persistent mouth breathing unless accompanied by adenoid hypertrophy. * **C. Croup (Laryngotracheobronchitis):** This is an acute inflammatory condition presenting with a "barking" cough, inspiratory stridor, and hoarseness. It is not a cause of chronic, persistent snoring or mouth breathing. * **D. Paranasal sinus polyp:** While polyps cause nasal obstruction, they are relatively rare in children. If present, they are often associated with Cystic Fibrosis or Kartagener’s syndrome. Adenoid hypertrophy is statistically far more common in the pediatric age group. **High-Yield Clinical Pearls for NEET-PG:** * **Investigation of Choice:** X-ray soft tissue nasopharynx (Lateral view) shows narrowing of the nasopharyngeal air space. * **Gold Standard Investigation:** Diagnostic nasal endoscopy. * **Associated Condition:** Adenoiditis often leads to **Eustachian tube dysfunction**, resulting in Otitis Media with Effusion (Glue Ear). * **Treatment:** Adenoidectomy is indicated if there is persistent mouth breathing, sleep apnea, or recurrent otitis media.

Q: What is 'Trench mouth'?

Ulcerative lesion of the tonsil. **Explanation:** **Trench Mouth**, also known as **Vincent’s Angina** or Acute Necrotizing Ulcerative Gingivitis (ANUG), is a painful, non-contagious infection of the gums and tonsils. 1. **Why Option C is correct:** The disease is characterized by the formation of "punched-out" **ulcerative lesions** covered by a gray pseudomembrane. When it involves the tonsils (Vincent’s Angina), it typically presents as a unilateral, painful ulcer on the superior pole of the tonsil. It is caused by a symbiotic infection of two organisms: a fusiform bacillus (*Fusobacterium nucleatum*) and a spirochete (*Borrelia vincentii*). The name "Trench Mouth" originated during World War I, as soldiers in the trenches frequently developed this condition due to poor oral hygiene, stress, and malnutrition. 2. **Why other options are incorrect:** * **Option A:** Submucosal fibrosis (OSMF) is a chronic, progressive premalignant condition associated with areca nut chewing, characterized by juxta-epithelial inflammatory reaction and progressive fibrosis of the oral cavity. * **Option B:** This is a distractor; tumors at the uveal angle relate to Ophthalmology, not pharyngeal pathology. * **Option C:** A retention cyst of the tonsil is a benign, yellowish-white cyst formed due to the blockage of a tonsillar crypt, usually asymptomatic and non-ulcerative. **High-Yield Clinical Pearls for NEET-PG:** * **Microbiology:** Look for the "Fusospirochetal complex" in the history. * **Clinical Presentation:** Foul breath (halitosis), metallic taste, and bleeding gums. * **Treatment:** Debridement, hydrogen peroxide mouthwashes, and antibiotics (Penicillin or Metronidazole). * **Differential Diagnosis:** Must be differentiated from Diphtheria (which has a tough, adherent membrane) and infectious mononucleosis.

Q: Progressive dysphagia initially for solids and later for liquids is the hallmark feature of carcinoma of which part of the pharynx?

Hypopharynx. **Explanation:** The hallmark clinical presentation of **Hypopharyngeal Carcinoma** (specifically the post-cricoid and pyriform sinus regions) is **progressive dysphagia**. Initially, the patient experiences difficulty swallowing solids, which eventually progresses to liquids as the tumor circumferentially involves the lumen or obstructs the food passage. This occurs because the hypopharynx is the narrowest part of the upper food passage, and symptoms often manifest only when the tumor has significantly narrowed the lumen. **Why other options are incorrect:** * **Nasopharynx:** The nasopharynx is primarily a respiratory passage. Carcinoma here typically presents with the "Trotter’s Triad" (conductive hearing loss, palatal paralysis, and trigeminal neuralgia) or a painless neck mass. Dysphagia is not a primary or early feature. * **Oropharynx:** While tumors here can cause dysphagia, the more characteristic early symptoms are "hot potato voice," odynophagia (painful swallowing), or a persistent sore throat. The wide caliber of the oropharynx means obstructive dysphagia often occurs much later compared to the hypopharynx. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site:** The **Pyriform Sinus** is the most common site for hypopharyngeal cancer. * **Post-cricoid Carcinoma:** Highly associated with **Plummer-Vinson (Paterson-Brown-Kelly) Syndrome** and is more common in females. * **Referred Otalgia:** Often the first symptom of hypopharyngeal cancer, mediated via the **Vagus nerve (Arnold’s nerve)**. * **Speculum sign:** Pooling of saliva in the pyriform fossa (Jackson’s sign) on indirect laryngoscopy is a strong clinical indicator of an obstructive growth in the hypopharynx or esophagus.

Q: Nasopharyngeal carcinoma causes deafness by which mechanism?

Blocking the Eustachian tube. **Explanation:** **Mechanism of Deafness in Nasopharyngeal Carcinoma (NPC):** Nasopharyngeal carcinoma most commonly arises from the **Fossa of Rosenmüller**, which is located immediately posterior to the opening of the Eustachian tube. As the tumor grows, it causes **mechanical obstruction of the Eustachian tube orifice**. This leads to negative middle ear pressure, transudation of fluid, and the development of **Secondary Otitis Media with Effusion (Serous Otitis Media)**. The resulting hearing loss is **conductive** in nature. **Analysis of Options:** * **A (Correct):** This is the primary, initiating mechanism. The physical blockage of the tube by the tumor mass is the root cause of subsequent ear pathology. * **B (Incorrect):** While Serous Otitis Media *is* the condition that causes the deafness, it is the **result** of the Eustachian tube blockage, not the primary mechanism of the tumor itself. In MCQ exams, always prioritize the "proximal" or "initiating" cause. * **C (Incorrect):** Temporal bone metastasis is rare in NPC and would typically present with sensorineural hearing loss or facial nerve palsy rather than simple conductive deafness. * **D (Incorrect):** Radiation can cause Eustachian tube dysfunction or osteoradionecrosis, but this occurs *after* treatment. Deafness is often the **presenting symptom** of the disease itself. **High-Yield Clinical Pearls for NEET-PG:** * **Trotter’s Triad:** A classic presentation of NPC consisting of: 1. Conductive deafness (due to ET blockage). 2. Ipsilateral soft palate paralysis (CN X involvement). 3. Trigeminal neuralgia (CN V involvement causing temporofacial pain). * **Unilateral Serous Otitis Media** in an adult is **Nasopharyngeal Carcinoma** until proven otherwise. Always perform an endoscopic examination of the nasopharynx. * **EBV Association:** NPC is strongly linked to the Epstein-Barr Virus.

Q: What is the most common site of origin of nasopharyngeal angiofibroma?

Sphenopalatine foramen. ### Explanation **Juvenile Nasopharyngeal Angiofibroma (JNA)** is a benign but locally aggressive, highly vascular tumor typically seen in adolescent males. **1. Why Sphenopalatine Foramen is Correct:** The current consensus on the site of origin for JNA is the **sphenopalatine foramen**, specifically at the junction where the sphenoid process of the palatine bone meets the horizontal portion of the pterygoid process. The tumor typically arises from the superior margin of this foramen and expands into the pterygopalatine fossa and the nasopharynx. **2. Analysis of Incorrect Options:** * **A. Roof of nasopharynx:** While the tumor clinically presents as a mass in the nasopharynx, this is a site of *extension*, not the primary site of origin. * **C. Vault of skull:** The tumor can erode the skull base (specifically the sphenoid bone) in advanced stages, but it does not originate here. * **D. Lateral wall of nose:** The tumor often pushes the lateral wall of the nose medially as it grows, but the primary nidus is more posterior and lateral at the sphenopalatine foramen. **3. Clinical Pearls for NEET-PG:** * **Demographics:** Almost exclusively seen in **adolescent males** (testosterone-dependent). * **Classic Triad:** Adolescent male + Profuse recurrent epistaxis + Nasal obstruction. * **Holman-Miller Sign (Antral Sign):** Forward bowing of the posterior wall of the maxillary sinus seen on CT/MRI. * **Diagnosis:** Contrast-enhanced CT (CECT) is the investigation of choice. **Biopsy is contraindicated** due to the risk of torrential hemorrhage. * **Treatment:** Surgical excision (Pre-operative embolization is often done to reduce blood loss).

Question 1

Fiberoptic endoscopy is contraindicated in which of the following conditions?

Accepted Answer

Aneurysm of the aortic arch

Answer

Children

Answer

Cervical spondylosis

Answer

Hemoptysis

Question 2

Which of the following are contraindications for adenotonsillectomy?

Accepted Answer

Poliomyelitis, Haemophilus infection, Upper respiratory tract infection

Answer

Age less than 4 years, Poliomyelitis, Haemophilus infection

Answer

Age less than 4 years, Upper respiratory tract infection

Answer

Age less than 4 years, Poliomyelitis

Question 3

Which of the following statements are true about Quinke disease?

Accepted Answer

Peritonsillar abscess

Answer

Bacterial infection

Answer

Vocal cord edema

Answer

Edema of uvula

Question 4

A 10-year-old child presents with recurrent epistaxis. What is the most likely cause?

Accepted Answer

Angiofibroma

Answer

Hypertension

Answer

Arteriosclerosis

Answer

Surgery

Question 5

An 8-year-old child, who underwent adenoidectomy one year ago, now presents with middle ear effusion. What is the most probable diagnosis?

Accepted Answer

Recurrence

Answer

Grisel syndrome

Answer

Velopharyngeal insufficiency

Answer

Rhinolalia clausa

Question 6

The most likely cause of persistent snoring and mouth breathing in a child is:

Accepted Answer

Adenoid enlargement

Answer

Tonsillar enlargement

Answer

Croup

Answer

Paranasal sinus polyp

Question 7

What is 'Trench mouth'?

Accepted Answer

Ulcerative lesion of the tonsil

Answer

Submucosal fibrosis

Answer

Tumor at the uveal angle

Answer

Retention cyst of the tonsil

Question 8

Progressive dysphagia initially for solids and later for liquids is the hallmark feature of carcinoma of which part of the pharynx?

Accepted Answer

Hypopharynx

Answer

Oropharynx

Answer

Nasopharynx

Answer

All of the above

Question 9

Nasopharyngeal carcinoma causes deafness by which mechanism?

Accepted Answer

Blocking the Eustachian tube

Answer

Serous otitis media

Answer

Temporal bone metastasis

Answer

Radiation effects

Question 10

What is the most common site of origin of nasopharyngeal angiofibroma?

Accepted Answer

Sphenopalatine foramen

Answer

Roof of nasopharynx

Answer

Vault of skull

Answer

Lateral wall of nose

Diseases of the Pharynx — MCQs

Diseases of the Pharynx — MCQs

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