Diseases of the Nose and Paranasal Sinuses Practice Questions

Q: What is the treatment of choice for antrochoanal polyp?

Endoscopic removal. **Explanation:** An **Antrochoanal Polyp (Killian’s Polyp)** is a solitary polyp that arises from the mucosa of the maxillary sinus (usually near the accessory ostium), passes through the natural or accessory ostium into the middle meatus, and extends posteriorly into the choana and nasopharynx. **Why Endoscopic Removal is the Treatment of Choice:** Functional Endoscopic Sinus Surgery (FESS) is the gold standard. It allows for the precise identification of the polyp’s stalk and its point of origin within the maxillary sinus. By widening the natural ostium (middle meatal antrostomy), the surgeon can ensure complete removal of the antral portion, which is crucial to **prevent recurrence**. It is minimally invasive, preserves sinus physiology, and has lower morbidity compared to open procedures. **Analysis of Incorrect Options:** * **Caldwell-Luc Operation:** Historically used to remove the antral part of the polyp via the canine fossa. While effective for preventing recurrence, it is now reserved for recurrent cases or when endoscopic access is impossible, as it carries risks of infraorbital nerve injury and dental damage. * **Intranasal Polypectomy:** This involves simple avulsion of the nasal part of the polyp. It is considered inadequate because it fails to remove the antral base, leading to a very high recurrence rate. **High-Yield Clinical Pearls for NEET-PG:** * **Origin:** Most commonly from the posterior/lateral wall or floor of the **maxillary sinus**. * **Components:** It has three parts—Antral, Nasal, and Choanal. * **Radiology:** On X-ray (Water’s view) or CT, it appears as a hazy maxillary sinus with a soft tissue mass extending into the nasopharynx. * **Differential Diagnosis:** Must be differentiated from a juvenile nasopharyngeal angiofibroma (JNA) in adolescent males; however, AC polyps are typically avascular and do not bleed on touch.

Q: Woody induration of rhinoscleroma is initially seen at which stage?

Granulomatous stage. **Rhinoscleroma** is a chronic granulomatous disease caused by *Klebsiella rhinoscleromatis* (Frisch bacillus). It typically progresses through four distinct clinical stages. ### **Explanation of the Correct Answer** The **Granulomatous stage** (Stage 3) is characterized by the formation of painless, non-ulcerating nodules in the nasal mucosa. These nodules coalesce to form a dense, hard mass, leading to the classic **"woody induration"** of the nose. This stage is histologically significant for the presence of **Mikulicz cells** (foamy macrophages containing the bacilli) and **Russell bodies** (eosinophilic inclusion bodies). ### **Analysis of Incorrect Options** * **A. Catarrhal stage:** This is the initial stage, presenting like a common cold with foul-smelling purulent nasal discharge and crusting. There is no induration here. * **B. Atrophic stage:** This stage mimics Atrophic Rhinitis, characterized by foul-smelling crusts and a roomy nasal cavity. The tissues are thinning rather than hardening. * **D. Cicatricial stage:** This is the final stage of healing by fibrosis. While it causes severe stenosis (e.g., of the nares or nasopharynx) and adhesions, the characteristic "woody" granulomatous mass is a feature of the preceding stage. ### **NEET-PG High-Yield Pearls** * **Organism:** *Klebsiella rhinoscleromatis* (Gram-negative, diplobacillus). * **Biopsy Findings:** Mikulicz cells (diagnostic) and Russell bodies (non-specific). * **Clinical Sign:** "Hebra Nose" (widening of the nasal bridge due to granuloma). * **Treatment of Choice:** Streptomycin and Tetracycline (or Ciprofloxacin) for long durations (weeks to months). * **Site:** It most commonly starts in the subepithelial layer of the anterior nares/nasal septum.

Q: What is the most appropriate management for an antrochoanal polyp in children?

Intra-nasal polypectomy. **Explanation:** An **Antrochoanal Polyp (Killian’s Polyp)** is a solitary, benign growth that originates from the mucosa of the maxillary sinus, exits through the accessory ostium, and extends into the choana and nasopharynx. **Why Intra-nasal Polypectomy is the correct answer:** In the pediatric age group, the primary goal is to remove the polyp while preserving the developing permanent dentition and the growth of the maxilla. **Intra-nasal polypectomy** (often performed via Functional Endoscopic Sinus Surgery - FESS) is the treatment of choice. It allows for the removal of the polyp and its stalk through the natural or accessory ostium with minimal morbidity. **Why other options are incorrect:** * **Caldwell-Luc operation:** This involves an incision in the gingivolabial sulcus to enter the maxillary sinus. It is **contraindicated in children** (usually under age 17) because it can damage the roots of unerupted permanent teeth and interfere with maxillary bone growth. * **Corticosteroids:** While steroids are effective for ethmoidal (allergic) polyps, antrochoanal polyps are typically non-allergic and do not respond significantly to medical management. Surgery is definitive. * **Wait and watch:** Antrochoanal polyps cause progressive nasal obstruction and can lead to sinusitis or sleep apnea; they do not regress spontaneously. **High-Yield Clinical Pearls for NEET-PG:** * **Origin:** Most commonly the posterior wall/floor of the **Maxillary sinus**. * **Radiology:** On X-ray (Water’s view), it shows opacification of the maxillary sinus. On CT, it shows a "dumbbell-shaped" mass extending from the sinus to the choana. * **Recurrence:** The most common cause of recurrence is failure to remove the **intramural (sinus) component** of the polyp. * **Differential Diagnosis:** In a male child with a nasopharyngeal mass, always rule out Juvenile Nasopharyngeal Angiofibroma (JNA) before biopsy.

Q: For deviated nasal septum, which of the following conditions generally requires surgical intervention?

Recurrent sinusitis. **Explanation:** The primary indication for surgical correction of a Deviated Nasal Septum (DNS), such as Septoplasty or SMR, is the presence of **mechanical obstruction** leading to secondary complications. **Why "Recurrent Sinusitis" is the correct answer:** A deviated septum can physically obstruct the **osteomeatal complex (OMC)**, the narrow channel where the paranasal sinuses drain. This blockage impairs mucociliary clearance, leading to stasis of secretions and secondary bacterial infection. When DNS causes recurrent or chronic sinusitis that fails medical management, surgical intervention (Septoplasty) is mandatory to restore sinus ventilation and drainage. **Analysis of Incorrect Options:** * **A. Septal spur with epistaxis:** While a spur can cause localized drying and bleeding, it is often managed conservatively with lubricants or cautery. Surgery is only considered if bleeding is severe and refractory. * **B. Marked septal deviation:** The *degree* of deviation does not dictate surgery; the *symptoms* do. Many patients have marked deviation but remain asymptomatic. Surgery is not indicated for anatomical findings alone. * **C. Persistent rhinorrhea:** Rhinorrhea is typically a symptom of rhinitis (allergic or vasomotor) rather than a structural septal issue. Correcting the septum rarely resolves persistent watery discharge. **Clinical Pearls for NEET-PG:** * **Cottle’s Test:** Used to differentiate nasal valve obstruction from septal deviation. * **Sluder’s Neuralgia:** Facial pain caused by a septal spur impinging on the turbinate (contact point headache). * **Age for Surgery:** SMR is generally avoided before age 17 to prevent interference with midfacial growth; Septoplasty is the preferred conservative approach in younger patients. * **Complication:** The most common complication of SMR is a septal hematoma, which, if untreated, leads to a septal abscess and "Saddle Nose" deformity.

Q: What is the best X-ray view to visualize the maxillary sinus?

Water's view. **Explanation:** The **Water’s view (Occipitomental view)** is the gold standard radiographic projection for visualizing the **maxillary sinuses**. In this position, the patient’s chin is tilted up against the film, which displaces the dense petrous part of the temporal bone downwards, preventing it from overlapping and obscuring the maxillary antrum. This provides a clear, unobstructed view of the sinus floor and walls, making it ideal for detecting sinusitis, air-fluid levels, or fractures of the orbital floor (blow-out fractures). **Analysis of Incorrect Options:** * **Caldwell’s view (Occipitofrontal view):** This is the best view for the **frontal and ethmoid sinuses**. In this view, the petrous bone lies over the lower part of the orbit and the maxillary sinus, making the latter difficult to evaluate. * **Lateral view:** This is primarily used to visualize the **sphenoid sinus**, the nasopharynx (for adenoids), and the anterior/posterior walls of the frontal sinuses. * **Occlusal anterior view:** This is a dental radiograph used to visualize the floor of the mouth or the palate; it is not used for paranasal sinus evaluation. **High-Yield Clinical Pearls for NEET-PG:** * **Best view for Sphenoid Sinus:** Lateral view or Open-mouth Water’s view. * **Best view for Ethmoid Sinus:** Caldwell’s view. * **Best view for Frontal Sinus:** Caldwell’s view. * **Gold Standard Investigation:** While X-rays are common screening tools, **Non-Contrast CT (NCCT) of the Paranasal Sinuses** is the investigation of choice for chronic sinusitis and preoperative planning (FESS).

Q: Cottle's test assesses the patency of the nares in which condition?

Deviated nasal septum. ### Explanation **Cottle’s Test** is a clinical maneuver used to evaluate the patency of the **nasal valve**, which is the narrowest part of the nasal airway. **Why Deviated Nasal Septum (DNS) is correct:** In patients with a Deviated Nasal Septum, the deviation often occurs at or near the internal nasal valve (formed by the caudal border of the upper lateral cartilage and the septum). During Cottle’s test, the cheek is pulled laterally to open the valve angle. If this maneuver results in an **improvement in airflow** or relief of obstruction, the test is positive, indicating that the site of obstruction is the nasal valve (often due to septal deviation or collapse of the lateral nasal wall). **Why other options are incorrect:** * **Atrophic Rhinitis:** This condition is characterized by a pathologically wide nasal cavity due to mucosal atrophy. Patients suffer from "paradoxical obstruction" despite a patent airway; Cottle’s test is irrelevant here. * **Rhinosporidiosis:** This is a fungal infection causing friable, leafy vascular masses. Obstruction is due to a physical mass, not a valvular collapse. * **Hypertrophied Inferior Turbinate:** While this causes obstruction, Cottle’s test specifically targets the valve area. Turbinate hypertrophy is better assessed via anterior rhinoscopy and response to decongestants. **High-Yield Clinical Pearls for NEET-PG:** * **Internal Nasal Valve:** The narrowest part of the entire respiratory tract (normal angle is 10–15°). * **Modified Cottle’s Test:** Performed using a cotton-tipped applicator or ear speculum to support the upper lateral cartilage internally; it is more specific than the standard test. * **False Positives:** A positive Cottle’s test can also occur in alar collapse or facial nerve palsy. * **Surgical Correlation:** A positive test suggests that the patient may benefit from septoplasty or functional rhinoplasty (e.g., spreader grafts).

Q: Which of the following is a common site of bleeding in the nasal cavity?

Little's area. **Explanation:** **Little’s Area** is the most common site for epistaxis (nasal bleeding), particularly in children and young adults. It is located in the anteroinferior part of the nasal septum, just above the vestibule. This area is clinically significant because it contains **Kiesselbach’s Plexus**, a highly vascularized region where four (or five) arteries anastomose: 1. **Anterior Ethmoidal artery** (from Internal Carotid) 2. **Sphenopalatine artery** (from External Carotid) 3. **Greater Palatine artery** (from External Carotid) 4. **Superior Labial artery** (from External Carotid) Because this area is superficial and located at the entrance of the airway, it is prone to drying, crusting, and digital trauma (nose picking), leading to **anterior epistaxis**. **Analysis of Incorrect Options:** * **Woodruff Plexus:** Located in the posterior part of the nasal cavity (lateral wall, posterior to the inferior turbinate). It is the most common site for **posterior epistaxis**, usually seen in elderly patients with hypertension. * **Brown’s Area:** This is a distractor; there is no recognized anatomical region by this name in the nasal cavity relevant to epistaxis. * **Vestibular Area:** This is the skin-lined entry of the nose containing vibrissae (hairs). While it can suffer from furunculosis or vestibulitis, it is not the primary site for spontaneous epistaxis. **High-Yield Clinical Pearls for NEET-PG:** * **Trotted’s Method:** The first-aid management for bleeding from Little’s area (pinching the nose and leaning forward). * **Artery of Epistaxis:** The Sphenopalatine artery. * **Woodruff’s Plexus** is primarily formed by the Sphenopalatine and Pharyngeal arteries. * **Most common cause of epistaxis in children:** Finger nail trauma (nose picking).

Q: What is the anatomical approach for a Caldwell-Luc operation?

Sublabial sulcus. **Explanation:** The **Caldwell-Luc operation** (also known as Radical Antrostomy) is a surgical procedure designed to access the **maxillary sinus** through the canine fossa. **1. Why Sublabial Sulcus is Correct:** The anatomical approach involves a horizontal incision made in the **sublabial sulcus** (the groove between the upper lip and the gingiva), specifically above the roots of the premolar teeth. After elevating the periosteum, a hole is drilled into the anterior wall of the maxilla at the **canine fossa**. This provides direct visualization and wide access to the maxillary sinus for removing diseased mucosa, polyps, or foreign bodies. **2. Why Other Options are Incorrect:** * **Hard Palate:** This approach is used for palatal surgeries or accessing the floor of the nasal cavity, but it does not provide direct access to the maxillary antrum. * **Inferior Meatus:** While a "naso-antral window" is often created in the inferior meatus *during* a Caldwell-Luc procedure to ensure permanent drainage, it is not the primary anatomical approach for the surgery itself. * **Superior Meatus:** This area is located high in the nasal cavity and is related to the posterior ethmoid cells and sphenoid sinus, not the maxillary sinus. **Clinical Pearls for NEET-PG:** * **Indications:** Chronic maxillary sinusitis (not responding to FESS), removal of antrochoanal polyps, retrieval of a displaced tooth root, and as a precursor to the Denker’s operation. * **Complication:** The most common complication is **cheek swelling and numbness** due to injury to the **infraorbital nerve**. * **Current Status:** Largely replaced by Functional Endoscopic Sinus Surgery (FESS), but remains high-yield for exams.

Q: Depressed bridge of the nose may be due to any of the following except:

Acromegaly. **Explanation:** A depressed nasal bridge (saddle nose deformity) occurs due to the destruction or lack of support from the nasal septum (cartilaginous part) or the nasal bones (bony part). **Why Acromegaly is the correct answer:** Acromegaly is characterized by an excess of Growth Hormone (GH) after epiphyseal closure. Instead of destruction, it causes **bony overgrowth and thickening**. In the nose, this manifests as **macrognathia** and **broadening/enlargement** of the nose due to soft tissue hypertrophy and bony expansion, rather than a depression or collapse of the bridge. **Analysis of incorrect options:** * **Syphilis:** Congenital syphilis is a classic cause of saddle nose deformity due to gummatous destruction of the nasal bones and septum. * **Leprosy:** This infection specifically targets the cartilaginous framework of the nose, leading to the collapse of the dorsum and a characteristic "facies leontina." * **Septal Abscess:** This is the most common acute cause. Pus collection strips the perichondrium from the septal cartilage, leading to avascular necrosis and subsequent collapse of the nasal bridge. **High-Yield Clinical Pearls for NEET-PG:** * **Saddle Nose Deformity Causes:** Trauma (most common), Septal hematoma/abscess, Leprosy, Syphilis, Tuberculosis, and Wegener’s Granulomatosis. * **Wegener’s Granulomatosis:** Often presents with a "crusty nose" and saddle nose deformity due to necrotizing granulomas. * **Management:** Minor depressions are treated with augmentation rhinoplasty using fillers or cartilage/bone grafts (e.g., iliac crest or rib graft).

Question 1

What is the treatment of choice for antrochoanal polyp?

Accepted Answer

Endoscopic removal

Answer

Caldwell-Luc operation

Answer

Intranasal polypectomy

Answer

None of the above

Question 2

An 18-year-old girl presented with multiple nasal polypi in both nostrils, nasal obstruction, and sinusitis. CT scan shows dense shadows in the sinuses. Histopathology did not show fungal invasion of tissues. Which of the following treatments is NOT indicated?

Accepted Answer

Amphotericin B

Answer

Intranasal corticosteroids

Answer

Surgical removal

Answer

Anti-histamines

Question 3

Woody induration of rhinoscleroma is initially seen at which stage?

Accepted Answer

Granulomatous stage

Answer

Catarrhal stage

Answer

Strophic stage

Answer

Cicatricial stage

Question 4

What is the most appropriate management for an antrochoanal polyp in children?

Accepted Answer

Intra-nasal polypectomy

Answer

Caldwell-Luc operation

Answer

Corticosteroids

Answer

Wait and watch

Question 5

For deviated nasal septum, which of the following conditions generally requires surgical intervention?

Accepted Answer

Recurrent sinusitis

Answer

Septal spur with epistaxis

Answer

Marked septal deviation

Answer

Persistent rhinorrhea

Question 6

What is the best X-ray view to visualize the maxillary sinus?

Accepted Answer

Water's view

Answer

Caldwell's view

Answer

Lateral view

Answer

Occlusal anterior view

Question 7

Cottle's test assesses the patency of the nares in which condition?

Accepted Answer

Deviated nasal septum

Answer

Atrophic rhinitis

Answer

Rhinosporidiosis

Answer

Hypertrophied inferior turbinate

Question 8

Which of the following is a common site of bleeding in the nasal cavity?

Accepted Answer

Little's area

Answer

Woodruff plexus

Answer

Brown's area

Answer

Vestibular Area

Question 9

What is the anatomical approach for a Caldwell-Luc operation?

Accepted Answer

Sublabial sulcus

Answer

Hard palate

Answer

Inferior meatus

Answer

Superior meatus

Question 10

Depressed bridge of the nose may be due to any of the following except:

Accepted Answer

Acromegaly

Answer

Leprosy

Answer

Syphilis

Answer

Septal abscess

Diseases of the Nose and Paranasal Sinuses — MCQs

Diseases of the Nose and Paranasal Sinuses — MCQs

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