Head and Neck Surgery

Head and Neck Surgery Indian Medical PG Question 1: Secondaries in the neck with no obvious primary malignancy is most often due to which of the following?

• A. Carcinoma of the Stomach
• B. Carcinoma of the Larynx
• C. Carcinoma of the Nasopharynx (Correct Answer)
• D. Carcinoma of the Thyroid

Head and Neck Surgery Explanation: **Explanation:** The clinical scenario of "Secondary in the neck with an unknown primary" refers to a metastatic cervical lymph node where the initial site of malignancy is not clinically apparent. **Why Nasopharynx is the correct answer:** Carcinoma of the Nasopharynx is notorious for being "clinically silent" in its early stages. Due to its anatomical location in the fossa of Rosenmüller, the primary tumor often remains small and asymptomatic while early lymphatic spread occurs. In approximately **50-60% of cases**, a painless neck swelling (usually involving the upper deep cervical or Level V nodes) is the first and only presenting symptom. This makes it the most common site for an occult primary in the head and neck region. **Analysis of Incorrect Options:** * **Carcinoma of the Stomach:** While it can metastasize to the left supraclavicular node (Virchow’s node/Troisier’s sign), it is a distant metastasis (Stage IV) and usually presents with significant constitutional or GI symptoms. * **Carcinoma of the Larynx:** These tumors typically present early with symptoms like hoarseness of voice (glottic) or throat pain/dysphagia (supraglottic), making the primary site "obvious" rather than occult. * **Carcinoma of the Thyroid:** While it frequently spreads to cervical nodes (especially papillary variety), the primary thyroid nodule is usually palpable or easily detected on initial physical examination. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site of occult primary:** Nasopharynx (followed by Palatine Tonsil and Base of Tongue). * **Diagnostic Gold Standard:** Fine Needle Aspiration Cytology (FNAC) is the first-line investigation for the neck mass. * **Work-up:** If the primary is not found on physical exam, the next steps include **CECT/MRI** from skull base to clavicle and **Panendoscopy** (Direct laryngoscopy, Esophagoscopy, and Bronchoscopy) with guided biopsies. * **EBV Association:** Nasopharyngeal carcinoma is strongly associated with the Epstein-Barr Virus.

Head and Neck Surgery Indian Medical PG Question 2: What clinical appearance is associated with bilateral TMJ ankylosis?

• A. Bird face appearance
• B. Vogel gesicht appearance
• C. Andy gump appearance
• D. All of the above (Correct Answer)

Head and Neck Surgery Explanation: **Explanation:** Bilateral Temporomandibular Joint (TMJ) ankylosis, especially when it occurs during the developmental years, leads to a characteristic facial deformity due to the failure of mandibular growth. **1. Why "All of the above" is correct:** The terms **Bird face appearance**, **Vogel gesicht appearance**, and **Andy Gump appearance** are all synonymous in clinical ENT and Maxillofacial surgery to describe the same morphological profile. * **Bird face / Vogel gesicht:** "Vogel gesicht" is simply the German translation for "Bird face." It describes the profile where the mandible is severely retruded (micrognathia/retrognathia), making the nose appear prominent and the face resemble a bird. * **Andy Gump appearance:** Named after a famous 1920s comic strip character, this term refers to the severe receding chin (retrognathia) seen in these patients. **2. Pathophysiology:** The mandibular condyle is the primary growth center of the mandible. Bilateral ankylosis results in the cessation of forward and downward growth of the lower jaw. This leads to: * Micrognathia (small jaw) and Retrognathia (receded jaw). * Secondary features like "Antegonial notching" and a double chin appearance. **3. High-Yield Clinical Pearls for NEET-PG:** * **Unilateral Ankylosis:** Results in facial asymmetry with the chin deviating **towards** the affected side. * **Bilateral Ankylosis:** Results in symmetrical recession (Bird face) without deviation. * **Most common cause:** Trauma (especially birth trauma or falls on the chin) followed by infections (Otitis media). * **Treatment:** Gap arthroplasty or Interpositional arthroplasty. Early surgery is crucial to prevent permanent growth restriction. * **Airway Concern:** These patients are difficult to intubate (Difficult Airway) due to limited mouth opening and retrognathia.

Head and Neck Surgery Indian Medical PG Question 3: Which of the following is/are a contraindication for supraglottic laryngectomy?

• A. Poor pulmonary reserve, Tumor involving pyriform sinus, Tumor involving pre-epiglottic space, Vocal cord fixation
• B. Tumor involving pyriform sinus, Tumor involving pre-epiglottic space, Vocal cord fixation, Postcricoid area extension
• C. Poor pulmonary reserve, Tumor involving pre-epiglottic space, Vocal cord fixation, Postcricoid area extension (Correct Answer)
• D. Poor pulmonary reserve, Vocal cord fixation, Postcricoid area extension

Head and Neck Surgery Explanation: **Explanation:** Supraglottic laryngectomy is a functional partial laryngectomy designed to preserve the phonatory and protective functions of the larynx while resecting tumors above the level of the true vocal cords. **Why Option C is Correct:** The success of this surgery depends on the integrity of the glottic closure and the patient's ability to tolerate inevitable postoperative aspiration during the rehabilitation phase. 1. **Poor Pulmonary Reserve:** This is a **major contraindication**. Patients must have adequate lung function (FEV1 > 50-60%) to tolerate the transient aspiration that occurs while relearning to swallow. 2. **Vocal Cord Fixation:** This indicates deep infiltration into the thyroarytenoid muscle or cricoarytenoid joint (T3 lesion), necessitating a total laryngectomy. 3. **Postcricoid Area Extension:** Involvement of this area or the interarytenoid space compromises the posterior glottic closure, making aspiration permanent and severe. 4. **Pre-epiglottic Space:** While early teaching suggested this was a contraindication, modern surgical oncology considers **extensive** involvement or extension to the **base of the tongue** (more than 1-2 cm) or **vallecula** as a contraindication because it necessitates a wider resection that prevents functional swallowing. **Analysis of Incorrect Options:** * **Options A & B:** These include "Tumor involving pyriform sinus." Involvement of the **medial wall** of the pyriform sinus is actually an indication for an *extended* supraglottic laryngectomy, not an absolute contraindication, provided the apex is free. * **Option D:** This is incomplete as it misses the critical anatomical boundary of the pre-epiglottic space/base of tongue involvement. **High-Yield Clinical Pearls for NEET-PG:** * **The "Safety" Margin:** The inferior limit of a supraglottic laryngectomy is the **ventricle**, just above the true vocal cords. * **Nerve Preservation:** Both **Superior Laryngeal Nerves** (internal branch) are often sacrificed, but at least one **Recurrent Laryngeal Nerve** must be preserved to maintain vocal cord mobility. * **Prerequisite:** The patient must have a motivated mental status and sufficient "tussive" (cough) force to clear the airway.

Head and Neck Surgery Indian Medical PG Question 4: What is the most common tumor that produces metastasis to cervical lymph nodes?

• A. Glottic carcinoma
• B. Nasopharyngeal carcinoma (Correct Answer)
• C. Carcinoma of the base of the tongue
• D. Carcinoma of the lip

Head and Neck Surgery Explanation: **Explanation:** The correct answer is **Nasopharyngeal Carcinoma (NPC)**. This is due to the rich lymphatic network of the nasopharynx and the aggressive biological nature of the tumor. **Why Nasopharyngeal Carcinoma is correct:** Nasopharyngeal carcinoma is notorious for early and frequent lymphatic spread. In approximately **60-90% of cases**, patients present with a neck mass as their first clinical symptom. The drainage often involves the **Nodes of Rouviere** (lateral retropharyngeal) and Level II/III/V cervical nodes. Bilateral cervical lymphadenopathy is also highly characteristic of NPC. **Analysis of Incorrect Options:** * **Glottic Carcinoma:** The true vocal cords have a very sparse lymphatic supply. Consequently, glottic cancer has the **lowest rate** of cervical metastasis among head and neck cancers, often remaining localized for a long duration. * **Carcinoma of the Base of Tongue:** While this area is rich in lymphatics and frequently metastasizes (often bilaterally), the incidence of nodal presentation at the time of diagnosis is statistically lower than in Nasopharyngeal Carcinoma. * **Carcinoma of the Lip:** This typically follows a more indolent course. Metastasis occurs late and usually involves the submental or submandibular nodes (Level I), occurring in only about 5-10% of cases. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site of occult primary** presenting as a neck secondary: Nasopharynx, followed by the Palatine Tonsil and Base of Tongue. * **Troisier’s Sign:** A metastatic supraclavicular node (usually left-sided Virchow’s node) from an infra-diaphragmatic primary (e.g., Gastric CA). * **EBV Association:** Nasopharyngeal carcinoma (Type II and III) is strongly associated with the Epstein-Barr Virus. * **First echelon node for NPC:** Often the **Jugulodigastric node** or the Retropharyngeal nodes.

Head and Neck Surgery Indian Medical PG Question 5: Which of the following statements regarding branchial anomalies is true?

• A. Most commonly, the second branchial arch is involved. (Correct Answer)
• B. Branchial cysts are less common than branchial sinuses.
• C. First arch branchial anomalies are never seen.
• D. Internal draining sinuses are the most common type.

Head and Neck Surgery Explanation: **Explanation:** Branchial anomalies arise from the failure of the branchial apparatus (clefts, arches, and pouches) to involute during embryonic development. **1. Why Option A is Correct:** The **second branchial arch** (specifically the second branchial cleft) is involved in approximately **95% of all branchial anomalies**. These typically present as a cyst or sinus located along the anterior border of the sternocleidomastoid muscle, at the junction of its upper and middle thirds. **2. Why the Other Options are Incorrect:** * **Option B:** **Branchial cysts** are actually **more common** than branchial sinuses or fistulae. They often present in late childhood or early adulthood, frequently following an upper respiratory tract infection. * **Option C:** First arch anomalies **do occur**, though they are rare (approx. 1-8%). They are classified into Type I (periauricular) and Type II (perimandibular) and are closely related to the external auditory canal and the facial nerve. * **Option D:** **External draining sinuses** (opening on the skin) are more common than internal draining sinuses (opening into the pharynx). **High-Yield NEET-PG Pearls:** * **Location of 2nd Cleft Cyst:** Found deep to the platysma, anterior to the SCM, and **between the internal and external carotid arteries** (bifurcation). * **Internal Opening:** A second branchial fistula typically opens internally in the **tonsillar fossa**. * **Third Cleft Anomalies:** Rare; the internal opening is in the **pyriform sinus**, and they are often associated with recurrent thyroiditis. * **Fourth Cleft Anomalies:** Extremely rare; they typically loop around the aorta (left) or subclavian artery (right).

Head and Neck Surgery Flashcard 1 of 5

Question: The given image shows the _____ incision that can be used in removal of angiofibroma

Answer: Moure's

Head and Neck Surgery Flashcard 2 of 5

Question: _____ incision is used to access the floor of the maxillary sinus in the case of maxillary carcinoma.

Answer: WeberFerguson

Head and Neck Surgery Flashcard 3 of 5

Question: A _____ cyst presents as an anterior, midline neck mass that moves with swallowing or protrusion of the tongue

Answer: thyroglossal duct

Head and Neck Surgery Flashcard 4 of 5

Question: _____ is known as the graveyard of ENT surgeons.

Answer: Tonsillolingual Sulcus

Head and Neck Surgery Flashcard 5 of 5

Question: Routine indications for a _____ tracheostomy is Foreign body, Head injury resulting in unconsciousness, Laryngeal diphtheria and Acute laryngotracheobronchitis

Answer: mid/normal