Head and Neck Surgery — MCQs

Head and Neck Surgery Indian Medical PG Practice Questions and MCQs

Question 511: Which of the following is not typically performed during septoplasty?

A. Surgical removal of nasal polyps (Correct Answer)
B. Throat pack
C. Nasal packing at the end of surgery
D. Submucosal resection of deviated cartilage

Explanation: ***Surgical removal of nasal polyps*** - Septoplasty is a surgical procedure specifically designed to correct a **deviated nasal septum** by repositioning or removing obstructing cartilage and bone. - **Nasal polyps** arise from the mucosa of the nasal cavity or sinuses and require a separate procedure, typically **functional endoscopic sinus surgery (FESS)** or polypectomy. - While septoplasty and polypectomy may sometimes be performed together, polyp removal is **not part of standard septoplasty**. *Submucosal resection of deviated cartilage* - This is the **core component of septoplasty** - removing or repositioning deviated septal cartilage while preserving the mucosal lining. - The submucosal approach maintains structural support while correcting the deviation. *Throat pack* - A **throat pack** is routinely placed during septoplasty to **prevent aspiration of blood and secretions** into the pharynx and esophagus. - It protects the airway and is removed at the end of the procedure. *Nasal packing at the end of surgery* - **Nasal packing** (splints or packs) is commonly placed after septoplasty to **control bleeding, support the septum, and prevent hematoma formation**. - Modern techniques may use absorbable or non-absorbable packing materials.

Question 512: Which of the following statements about parotid fistula is false?

A. IOC is Sialogram
B. Complication of superficial parotidectomy
C. Internal fistulas are typically asymptomatic.
D. Treated with Newman and sea Brock's operation (Correct Answer)

Explanation: ***Treated with Newman and Sea Brock's operation*** - This statement is **false** because parotid fistulas are typically not treated with Newman and Sea Brock's operation; that procedure is associated with **recurrent parotitis** or **sialadenitis**, not fistulas. - Management of parotid fistulas usually involves conservative measures, **botulinum toxin injections**, or surgical repair, depending on the cause and severity. *Complication of superficial parotidectomy* - **Parotid fistulas** can indeed occur as a complication of **superficial parotidectomy** due to injury to the parotid duct or parenchyma during surgery. - This leads to saliva leaking from the wound or an established cutaneous opening. *IOC is Sialogram* - **Sialography** is often used as an **investigation of choice** or an important diagnostic tool to visualize the ductal system and identify the site of leakage in a parotid fistula. - It helps in delineating the anatomy and extent of the fistula. *Internal fistulas are typically asymptomatic.* - **Internal parotid fistulas**, which drain saliva into the oral cavity, are **typically asymptomatic** because the saliva is naturally swallowed, preventing external leakage or discomfort. - In contrast, external fistulas that drain to the skin surface are highly symptomatic due to visible salivary leakage.

Question 513: The following statements about thyroglossal cyst are true, except:

A. Frequent cause of anterior midline neck masses in the first decade of life
B. The swelling moves upwards on protrusion of tongue
C. The cyst is located within 2 cm of the midline
D. Incision and drainage is the treatment of choice (Correct Answer)

Explanation: ***Incision and drainage is the treatment of choice*** - **Incision and drainage** is generally not the definitive treatment for a thyroglossal duct cyst due to the high risk of **recurrence**. - The standard surgical approach is the **Sistrunk procedure**, which involves excising the cyst, the mid-portion of the hyoid bone, and the tract up to the foramen cecum. *Frequent cause of anterior midline neck masses in the first decade of life* - **Thyroglossal duct cysts** are indeed the most common congenital neck masses, often presenting in childhood, particularly in the **first decade of life**. - They arise from the embryological remnant of the **thyroglossal duct**, which normally involutes. *The cyst is located within 2 cm of the midline* - **Thyroglossal cysts** are almost always found in the **midline** or slightly off-midline of the neck. - Their location is consistent with the path of the **descending thyroid gland** during embryonic development. *The swelling moves upwards on protrusion of tongue* - This is a classic diagnostic sign for a **thyroglossal duct cyst**. - The cyst is connected to the tongue via the **thyroglossal duct remnant**, so tongue protrusion causes the cyst to elevate.

Question 514: Torrential bleeding during tonsillectomy is due to.

A. Facial artery
B. Paratonsillar vein
C. None of the options
D. Tonsillar artery (Correct Answer)

Explanation: ***Tonsillar artery*** * The **tonsillar artery**, a branch of the facial artery, is the primary arterial supply to the tonsils and is most commonly responsible for significant bleeding during or after a tonsillectomy. * This artery can be particularly vulnerable during dissection, leading to **torrential hemorrhage** if not properly ligated or cauterized. *Facial artery* * While the **facial artery** is the parent vessel of the tonsillar artery, direct injury to the main facial artery during tonsillectomy is less common as it is situated further away from the tonsillar bed. * Bleeding from the facial artery itself would be more extensive and harder to control than typical tonsillar bleeding. *Paratonsillar vein* * Bleeding from the **paratonsillar vein** can occur during tonsillectomy but is typically less severe and voluminous compared to arterial bleeding. * Venous bleeding is characterized by a slower, darker flow, whereas arterial bleeding from the tonsillar artery is bright red and pulsatile. *None of the options* * This option is incorrect because the **tonsillar artery** is indeed a well-known cause of significant bleeding during tonsillectomy. * Identifying the correct anatomical source of bleeding is crucial for effective surgical management.

Question 515: Elephant foot deformity is indicative of:

A. Unilateral Le Fort I fracture of maxilla
B. Non-union of fractured edentulous mandible (Correct Answer)
C. Diplopia
D. Skeletal Class II malocclusion

Explanation: ***Non-union of fractured edentulous mandible*** - An **elephant foot deformity** is a characteristic radiographic finding in the non-union of a fracture, particularly in the context of an **edentulous mandible**. - It describes the appearance of **sclerotic, hypertrophic bone ends** at the fracture site, resembling the thick, club-like foot of an elephant, due to persistent movement and attempted callus formation. *Diplopia* - **Diplopia** refers to the perception of two images from a single object, often caused by ophthalmological or neurological issues affecting eye movement. - It is a symptom related to vision and has no association with bone deformities or fracture healing patterns. *Skeletal Class II malocclusion* - **Skeletal Class II malocclusion** describes a condition where the mandible is retrognathic (set back) relative to the maxilla, resulting in an "overbite." - This is a developmental craniofacial anomaly related to jaw position, not a characteristic sign of fracture non-union. *Unilateral Le Fort I fracture of maxilla* - A **unilateral Le Fort I fracture of the maxilla** is a midfacial fracture that separates the maxilla from the pterygoid plates and nasal septum, usually involving a horizontal fracture line above the maxillary teeth. - While it is a type of facial fracture, it does not typically result in an "elephant foot deformity," which is specific to hypertrophic non-unions, especially in the mandible.

Question 516: In Frey's syndrome, aberrant regeneration of the auriculotemporal nerve leads to sweating on the cheeks while eating after parotid gland removal. What is the primary mechanism responsible for this sweating?

A. Aberrant connection to nasal mucosa
B. Aberrant connection to lacrimal glands
C. Aberrant connection to sweat glands (Correct Answer)
D. Aberrant connection to muscles of facial expression

Explanation: ***Aberrant connection to sweat glands*** - Following **parotidectomy**, damaged parasympathetic fibers from the auriculotemporal nerve regenerate and mistakenly innervate **sudomotor (sweat) glands** in the skin. - This leads to sweating on the cheek during mastication, as stimuli intended for salivary glands are redirected to sweat glands. *Aberrant connection to lacrimal glands* - This describes **lacrimation (tearing)** during gustatory stimuli, a phenomenon known as Bogorad's syndrome or "crocodile tears," which involves aberrant innervation of lacrimal glands. - It does not explain the **gustatory sweating** seen in Frey's syndrome. *Aberrant connection to nasal mucosa* - Aberrant innervation to the nasal mucosa would primarily cause **rhinorrhea (runny nose)** in response to stimuli, not sweating on the cheek. - This is not a characteristic feature of Frey's syndrome. *Aberrant connection to muscles of facial expression* - Aberrant innervation of facial muscles would result in **involuntary muscle contractions** or tics, not gustatory sweating. - Facial nerve damage and misdirection can lead to synkinesis, but it does not explain the sudomotor symptoms of Frey's syndrome.

Question 517: What is the definition of a penetrating neck injury?

A. Injury involving the carotid artery or jugular vein
B. Injury that violates the platysma (Correct Answer)
C. Injury caused by a sharp object
D. An injury that penetrates deeper than the platysma

Explanation: ***Injury that violates the platysma*** - A **penetrating neck injury** is specifically defined as any injury that **violates or breaches the platysma muscle**, regardless of the extent of deeper injury. - The **platysma** serves as the key anatomical landmark that distinguishes superficial neck wounds from penetrating neck injuries requiring thorough evaluation. - Once the platysma is violated, the injury is classified as **penetrating** because of the **potential** for damage to vital deeper structures such as blood vessels, nerves, airway, or digestive tract. *Injury involving the carotid artery or jugular vein* - While major vascular injuries can occur with penetrating neck trauma, this is too **narrow and specific** to serve as the definition. - This describes a **consequence** or **complication** of penetrating injury, not the **anatomical criterion** that defines it. - Not all penetrating neck injuries involve major vessels. *Injury caused by a sharp object* - This describes the **mechanism** of injury (e.g., stab wound), not the anatomical definition. - Penetrating neck injuries can result from various mechanisms including gunshot wounds, not just sharp objects. - The definition is based on **anatomical depth** (violating platysma), not the type of object causing injury. *An injury that penetrates deeper than the platysma* - This is very close to the correct definition and describes the same concept. - However, the precise medical definition states the injury **"violates the platysma"** rather than "penetrates deeper than" it. - The key anatomical landmark is the **breach of the platysma itself**, which is more accurately captured by "violates the platysma."

Question 518: The most common complication of Zenker's diverticulum is:

A. Aspiration pneumonia (Correct Answer)
B. Dysphonia
C. Lung abscess
D. Perforation

Explanation: ***Aspiration pneumonia*** - **Aspiration pneumonia** is the **most common complication** of Zenker's diverticulum, occurring due to chronic regurgitation of food and secretions that accumulate in the diverticulum. - Patients frequently experience **nocturnal regurgitation** of undigested food, which is then *aspirated* into the airways, leading to recurrent pulmonary infections. - This is the primary reason for surgical intervention in symptomatic patients with Zenker's diverticulum. *Lung abscess* - **Lung abscess** is a more *severe* but **less common** complication that can develop as a consequence of chronic, recurrent aspiration pneumonia. - It represents a localized, necrotizing infection and is a **progression** from untreated or recurrent aspiration, rather than the initial or most frequent complication. *Dysphonia* - While **dysphonia** (hoarseness) can occur due to irritation from regurgitated contents or compression of the recurrent laryngeal nerve, it is **uncommon** as a complication. - Dysphonia is more typically associated with **GERD** or direct laryngeal pathology. *Perforation* - **Perforation** of Zenker's diverticulum is a **rare** complication that may occur spontaneously, due to impacted food, or iatrogenically during endoscopic procedures. - While serious, it is far less common than pulmonary complications from chronic aspiration.

Question 519: Which of the following carcinomas commonly presents with neck nodes?

A. Cricoid
B. Glottis
C. Epiglottis (Correct Answer)
D. Anterior commissure

Explanation: ***Epiglottis*** - Carcinomas of the epiglottis, a **supraglottic** structure, often present with neck node metastases due to a rich lymphatic drainage. - The **epiglottis** is considered a "silent area" for early symptoms, allowing tumors to grow and spread to regional lymph nodes before diagnosis. *Cricoid* - The cricoid cartilage is part of the **subglottic larynx**, and carcinomas in this region are rare and typically present later with **airway obstruction** rather than early neck nodes. - Subglottic cancers have a different lymphatic drainage pattern, often involving **paratracheal nodes** rather than the superficial neck nodes. *Glottis* - **Glottic carcinomas** (involving the true vocal cords) typically have an excellent prognosis because they present early with **hoarseness** due to interference with vocal cord vibration. - The glottis has a **sparse lymphatic supply**, meaning that neck node involvement is rare, especially in early stages. *Anterior commissure* - Carcinomas involving the **anterior commissure** are still considered part of the glottic region, and like other glottic cancers, they present with early **hoarseness**. - The lymphatic drainage of the anterior commissure is generally sparse, leading to a **low incidence of early cervical lymph node metastases**.

Question 520: Which of the following anomalies is most likely to require special consideration in restorative treatment?

A. Dilaceration
B. Dens in dente (Correct Answer)
C. Taurodontism
D. Enameloma

Explanation: ***Dens in dente*** - This anomaly involves an **invagination of enamel and dentin** into the pulp chamber, creating a deep crevice that is highly susceptible to **caries** and subsequent **pulpal necrosis**. - Its complex internal morphology makes proper **sealing and restoration challenging**, often requiring specialized techniques to prevent recurrent decay or endodontic complications. *Dilaceration* - Dilaceration refers to an **abnormal bend or curve in the root or crown** of a tooth, usually due to trauma during tooth development. - While it can complicate **endodontic treatment or extraction**, it generally does not directly impact the restorative treatment of the crown, unless the crown itself is severely malformed. *Taurodontism* - Taurodontism is characterized by an **enlarged pulp chamber** with short roots, giving the tooth a "bull-like" appearance. - This condition primarily affects the **morphology of the root and pulp**, which typically does not pose a direct challenge to conventional restorative procedures on the crown unless it involves deep caries extending into the pulp. *Enameloma* - An enameloma (or enamel pearl) is a **small nodule of ectopic enamel** found on the root surface, usually near the cementoenamel junction (CEJ). - While they can be associated with localized periodontal problems, they generally **do not affect the restorative treatment** of the tooth's crown and are often amenable to simple removal if necessary.

Practice by Chapter

Salivary Gland Diseases

Practice Questions

Thyroid Gland Disorders

Practice Questions

Parathyroid Gland Disorders

Practice Questions

Neck Masses Evaluation

Practice Questions

Oral Cavity Lesions

Practice Questions

Laryngeal Disorders

Practice Questions

Head and Neck Cancer

Practice Questions

Reconstructive Techniques in Head and Neck Surgery

Practice Questions

Surgical Management of Sleep Apnea

Practice Questions

Airway Management in Head and Neck Surgery

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Surgical Approaches to the Neck

Practice Questions

Neck Dissection Techniques

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