Diseases of the Pharynx Practice Questions

Q: Which of the following arises from the pharyngeal bursa?

Tornwaldt's disease. ***Tornwaldt's disease*** - This condition involves a **retropharyngeal cyst** that forms from the persistent embryological remnant of the **pharyngeal bursa**. - Symptoms arise from the cyst's location in the **nasopharynx**, causing drainage, halitosis, and occasionally Eustachian tube dysfunction. *Craniopharyngioma* - This is a **benign brain tumor** that arises from remnants of Rathke's pouch, which is an embryonic anlage of the anterior pituitary gland. - It is typically located in the **suprasellar region** and is not derived from the pharyngeal bursa. *Chordoma* - This is a rare, **malignant bone tumor** that originates from remnants of the **notochord**. - It most commonly occurs at the base of the skull (clivus) or in the sacrum, separate from the pharyngeal bursa. *Lymphoma* - Lymphoma is a **cancer of the lymphocytes**, which are a type of white blood cell. - It typically originates in **lymph nodes** or other lymphoid tissues throughout the body, not from a specific embryonic remnant like the pharyngeal bursa.

Q: Which of the following statements about juvenile nasopharyngeal angiofibroma is true?

Surgery is the treatment of choice. ***Surgery is the treatment of choice*** - **Surgical resection** is the preferred and most effective treatment for juvenile nasopharyngeal angiofibroma (JNA) due to its high vascularity and propensity for local recurrence. - While other modalities like embolization may be used pre-operatively to reduce bleeding, **complete surgical removal** is usually necessary. *It is a malignant tumor* - Juvenile nasopharyngeal angiofibroma is a **benign, locally aggressive tumor** originating in the nasopharynx. - Despite its benign nature, it can cause significant morbidity due to its **vascularity** and tendency to invade surrounding structures like the skull base and orbit. *It commonly occurs in females* - This statement is incorrect; **juvenile nasopharyngeal angiofibroma almost exclusively affects adolescent males**, with a peak incidence between 10 and 20 years of age. - The disease is **extremely rare in females**, and its occurrence in a female should prompt investigation for conditions like androgen insensitivity syndrome. *Hormones are not used in the treatment* - This statement is incorrect; **anti-androgen therapy** (e.g., flutamide) or estrogen therapy has been explored in managing JNA given its androgen receptor sensitivity. - However, **hormonal treatment is generally not the primary modality** but may be considered in specific cases, such as unresectable tumours or for recurrence control, although its efficacy is variable.

Q: Which of the following is the most characteristic symptom of a peritonsillar abscess?

Trismus (difficulty opening the mouth). ***Trismus (difficulty opening the mouth)*** - **Trismus** is a hallmark symptom of a peritonsillar abscess, resulting from irritation and spasm of the **pterygoid muscles** due to inflammation and pus accumulation. - Its presence is a strong indicator, often more specific than generalized symptoms, aiding in the differentiation from simple tonsillitis. *Difficulty swallowing (dysphagia)* - While **dysphagia** is common with a peritonsillar abscess due to pain and swelling, it is also a feature of severe tonsillitis or pharyngitis, making it less specific than trismus. - The pain associated with swallowing is typically **odynophagia**, though both are related to inflammation. *Muffled or 'hot potato' voice* - A **muffled** or "hot potato" voice is characteristic of a peritonsillar abscess due to swelling in the oral pharynx, affecting vocal resonance. - However, this symptom can also be present in other conditions causing significant pharyngeal swelling, making it less unique than trismus. *Severe sore throat* - A **severe sore throat** is a common and prominent symptom, often unilateral, but it is present in many other throat infections such as **strep throat** or severe tonsillitis. - Its presence, though significant, does not specifically point to a peritonsillar abscess over other inflammatory conditions of the throat.

Q: In which of the following locations is a collection of pus found in quinsy?

Peritonsillar space. ***Peritonsillar space*** - **Quinsy is the clinical term for peritonsillar abscess**, defined as a collection of pus in the peritonsillar space between the tonsillar capsule and the superior constrictor muscle. - Typically develops as a complication of **acute bacterial tonsillitis** (often Streptococcus pyogenes), with pus extending beyond the tonsillar capsule. - Clinically presents with severe unilateral throat pain, trismus, "hot potato" voice, and deviation of the uvula away from the affected side. *Parapharyngeal space* - The **parapharyngeal (lateral pharyngeal) space** is a deeper potential space lateral to the pharynx, extending from skull base to hyoid bone. - Contains the carotid sheath with major vessels and cranial nerves IX, X, XI, XII. - Parapharyngeal abscess is a serious deep neck infection but is **not** called quinsy. *Retropharyngeal space* - The **retropharyngeal space** lies between the posterior pharyngeal wall and prevertebral fascia. - Retropharyngeal abscess is more common in children under 5 years and can cause airway obstruction. - This is a distinct entity from quinsy. *Within the tonsil* - Pus confined **within the tonsil parenchyma** represents severe acute tonsillitis or intratonsillar abscess, not quinsy. - Quinsy specifically requires extension **beyond the tonsillar capsule** into the peritonsillar space. - This distinction is clinically important for management decisions.

Q: An elderly male presents with a history of dysphagia, regurgitation, foul breath, and cough. Bilateral lung crepitations are noted on examination. The most likely diagnosis is:

Zenker's diverticulum. ***Zenker's diverticulum*** - The classic presentation includes **dysphagia**, **regurgitation** of undigested food, **foul breath (halitosis)** due to stagnant food, and **cough** [1]. - **Bilateral lung crepitations** suggest **aspiration pneumonia** due to chronic aspiration of swallowed contents, a common complication [1]. *Schatzki's ring* - This is a **mucosal ring** at the gastroesophageal junction, primarily causing **intermittent dysphagia** to solids. - It is not typically associated with **regurgitation of stagnant food**, **foul breath**, or **aspiration pneumonia**. *Corkscrew esophagus* - This refers to **diffuse esophageal spasm**, characterized by **intermittent chest pain** and **dysphagia** due to uncoordinated esophageal contractions [2]. - It does not typically cause the complete symptom complex of **regurgitation of stagnant food**, **foul breath**, or **aspiration**. *Plummer-Vinson syndrome* - This syndrome is characterized by the triad of **iron deficiency anemia**, **dysphagia** (due to esophageal webs), and **esophageal webs**. - While it causes dysphagia, it is not associated with **foul breath** or the high risk of **aspiration pneumonia** seen in this patient.

Q: The main vessel involved in bleeding from juvenile nasopharyngeal angiofibroma is:

Internal maxillary artery. ***Internal maxillary artery*** - The **internal maxillary artery** (IMA) is the primary blood supply to juvenile nasopharyngeal angiofibromas, making it the main vessel involved in bleeding. - The tumor's rich vascularity, predominantly fed by the IMA and its branches, explains the characteristic **severe epistaxis**. *Facial artery* - The **facial artery** is a branch of the external carotid artery that supplies blood to the face and some parts of the oral cavity. - While it can contribute to blood supply in the head and neck, it is not the primary feeder of juvenile nasopharyngeal angiofibromas. *Ascending pharyngeal artery* - The **ascending pharyngeal artery** is another branch of the external carotid artery, supplying structures in the pharynx, prevertebral muscles, and middle ear. - It can be a minor or secondary feeder to angiofibromas but is not the main source of significant hemorrhage. *Anterior ethmoidal artery* - The **anterior ethmoidal artery** is a branch of the ophthalmic artery, supplying parts of the nasal cavity and ethmoid sinuses. - It is typically involved in epistaxis originating from the anterior nasal septum (e.g., Kiesselbach's plexus) but is not the dominant vessel for angiofibroma bleeding.

Q: Pain of stylalgia is mediated through which nerve?

9th cranial nerve. ***9th cranial nerve*** - **Stylalgia**, or Eagle syndrome, is characterized by pain along the styloid process and is often associated with an elongated styloid process or calcification of the stylohyoid ligament. - The **glossopharyngeal nerve** (9th cranial nerve) passes close to the styloid process and is frequently implicated in mediating the pain experienced in stylalgia [1]. *10th cranial nerve* - The **vagus nerve** (10th cranial nerve) primarily innervates structures in the neck, thorax, and abdomen, and is not directly responsible for pain associated with stylalgia [1]. - While it has broad sensory functions, its branches are less intimately involved with the styloid process itself compared to the glossopharyngeal nerve. *11th cranial nerve* - The **spinal accessory nerve** (11th cranial nerve) is chiefly a motor nerve, innervating the sternocleidomastoid and trapezius muscles. - It has no significant role in mediating sensory pain from the styloid process. *5th cranial nerve* - The **trigeminal nerve** (5th cranial nerve) is responsible for sensation in the face and mastication, and its branches do not directly mediate pain from the styloid process. - Though some atypical facial pain conditions exist, stylalgia pain is distinct and attributed to other cranial nerves.

Q: Which of the following statements is false regarding peritonsillar abscess?

It can involve the floor of the mouth.. ***It can involve the floor of the mouth.*** - A **peritonsillar abscess** (quinsy) forms in the potential space between the **capsule of the palatine tonsil** and the **superior constrictor muscle**. - It does not extend to the **floor of the mouth**; that area is typically affected by conditions like **Ludwig's angina** or submandibular abscesses. *It causes bulge of the uvula/soft palate* - The inflammatory process and **pus accumulation** within the peritonsillar space push the **uvula** and **soft palate** towards the unaffected side. - This characteristic **bulge** is a key clinical sign helping to distinguish it from other throat infections. *Usually presents with trismus and difficulty swallowing.* - **Trismus**, or difficulty opening the mouth, results from **spasm of the pterygoid muscles** due to nearby inflammation and pain. - **Dysphagia** (difficulty swallowing) and **odynophagia** (painful swallowing) are common due to significant inflammation and pressure in the throat. *The accumulation of pus is lateral to the superior constrictor muscle* - The **peritonsillar space** is located **medial to the superior constrictor muscle**, between this muscle and the tough fibrous tonsillar capsule. - Accumulation of pus in this space pushes the tonsil **medially and anteriorly**, a key diagnostic feature.

Q: What syndrome is commonly associated with nasopharyngeal tumors?

Trotter's syndrome. ***Trotter's syndrome*** - **Trotter's syndrome** is classically associated with **nasopharyngeal carcinoma**, as the tumor's growth can compress nerves and structures in the region. - Key symptoms include **unilateral conductive hearing loss** (due to Eustachian tube obstruction), **trigeminal neuralgia** (due to V3 involvement), and **palatal paralysis**. *Frey's syndrome* - **Frey's syndrome** is characterized by **gustatory sweating and flushing** in the preauricular or temporal region, usually following parotid gland surgery or trauma to the auriculotemporal nerve. - It involves misdirected regeneration of parasympathetic fibers to sweat glands, not directly linked to nasopharyngeal tumors. *Horner's syndrome* - **Horner's syndrome** is a constellation of symptoms including **ptosis**, **miosis**, and **anhidrosis** on one side of the face, resulting from damage to the sympathetic pathway. - While nasopharyngeal tumors can sometimes cause Horner's syndrome if they invade the superior cervical ganglion, it is not the *most common* or specific syndrome directly associated with them. *Eagle's syndrome* - **Eagle's syndrome** is caused by an **elongated styloid process** or calcified stylohyoid ligament, leading to symptoms like neck, throat, or facial pain, especially during jaw movement. - It is an anatomical variant, not directly related to nasopharyngeal tumors.

Question 1

Which of the following arises from the pharyngeal bursa?

Accepted Answer

Tornwaldt's disease

Answer

Craniopharyngioma

Answer

Chordoma

Answer

Lymphoma

Question 2

Which of the following statements about juvenile nasopharyngeal angiofibroma is true?

Accepted Answer

Surgery is the treatment of choice

Answer

It commonly occurs in females

Answer

It is a malignant tumor

Answer

Hormones are not used in the treatment

Question 3

Which of the following is the most characteristic symptom of a peritonsillar abscess?

Accepted Answer

Trismus (difficulty opening the mouth)

Answer

Difficulty swallowing (dysphagia)

Answer

Muffled or 'hot potato' voice

Answer

Severe sore throat

Question 4

In which of the following locations is a collection of pus found in quinsy?

Accepted Answer

Peritonsillar space

Answer

Parapharyngeal space

Answer

Retropharyngeal space

Answer

Within the tonsil

Question 5

An elderly male presents with a history of dysphagia, regurgitation, foul breath, and cough. Bilateral lung crepitations are noted on examination. The most likely diagnosis is:

Accepted Answer

Zenker's diverticulum

Answer

Schatzki's ring

Answer

Corkscrew esophagus

Answer

Plummer-Vinson syndrome

Question 6

The main vessel involved in bleeding from juvenile nasopharyngeal angiofibroma is:

Accepted Answer

Internal maxillary artery

Answer

Facial artery

Answer

Ascending pharyngeal artery

Answer

Anterior ethmoidal artery

Question 7

Pain of stylalgia is mediated through which nerve?

Accepted Answer

9th cranial nerve

Answer

10th cranial nerve

Answer

11th cranial nerve

Answer

5th cranial nerve

Question 8

Which of the following statements is false regarding peritonsillar abscess?

Accepted Answer

It can involve the floor of the mouth.

Answer

It causes bulge of the uvula/soft palate

Answer

Usually presents with trismus and difficulty swallowing.

Answer

The accumulation of pus is medial to the superior constrictor muscle

Question 9

What syndrome is commonly associated with nasopharyngeal tumors?

Accepted Answer

Trotter's syndrome

Answer

Frey's syndrome

Answer

Horner's syndrome

Answer

Eagle's syndrome

Diseases of the Pharynx — MCQs

Diseases of the Pharynx — MCQs

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