Diseases of the Nose and Paranasal Sinuses Practice Questions

Q: Which of the following is NOT a cause of epistaxis?

Allergic rhinitis. **Explanation:** Epistaxis (nasal bleeding) occurs when there is a disruption in the vascular integrity of the nasal mucosa. **Why Allergic Rhinitis is the correct answer:** While allergic rhinitis causes inflammation, congestion, and sneezing, it is **not a direct cause** of epistaxis. However, it is a significant *predisposing* factor. The intense itching (pruritus) associated with allergy leads to secondary trauma (nose picking) or mucosal drying from antihistamine use, which then causes bleeding. In a "choose the best option" scenario for NEET-PG, allergic rhinitis itself is considered an inflammatory condition rather than a primary etiologic cause of hemorrhage. **Analysis of Incorrect Options:** * **Nose Picking (Digitation):** This is the **most common cause** of epistaxis, especially in children. It causes traumatic ulceration of the **Little’s area** on the anterior nasal septum. * **Foreign Body:** A neglected foreign body causes localized inflammation, secondary infection, and granulation tissue formation, typically presenting as **unilateral, foul-smelling, blood-stained nasal discharge**. * **Thrombocytopenia:** Systemic hematological disorders (like ITP or Leukemia) lead to a low platelet count, which impairs primary hemostasis, resulting in spontaneous mucosal bleeding. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site:** Little’s area (Kiesselbach’s plexus) on the anterior septum. * **Most common artery involved in anterior epistaxis:** Sphenopalatine artery (specifically the septal branch) or Greater Palatine. * **Woodruff’s Plexus:** Located over the posterior end of the middle turbinate; it is the most common site for **posterior epistaxis** in the elderly (usually associated with hypertension). * **First-line management:** Trotter’s method (pinching the soft part of the nose and leaning forward).

Q: Mulberry nasal mucosa is seen in?

Hypertrophic rhinitis. **Explanation:** **Hypertrophic Rhinitis (Correct Answer):** Hypertrophic rhinitis is characterized by permanent thickening of the nasal mucosa, primarily affecting the inferior turbinates. This occurs due to chronic inflammatory changes leading to venous stasis and secondary fibrosis. The characteristic appearance is a **"Mulberry" appearance**, specifically at the posterior ends of the inferior turbinates. The mucosa becomes thick, nodular, and pitted, resembling the surface of a mulberry fruit. Unlike simple vasomotor rhinitis, this hypertrophy does not shrink significantly with the application of vasoconstrictors (like oxymetazoline). **Incorrect Options:** * **Lupus Vulgaris:** This is a cutaneous form of tuberculosis. In the nose, it typically presents with "apple-jelly" nodules on the skin or cartilaginous destruction (perforation) of the nasal septum, rather than mulberry-like mucosal hypertrophy. * **Atrophic Rhinitis:** This is the clinical opposite of hypertrophic rhinitis. It is characterized by atrophy of the mucosa and turbinate bones, leading to a roomy nasal cavity filled with foul-smelling crusts (ozena) and "merciful anosmia." **NEET-PG High-Yield Pearls:** * **Mulberry Appearance:** Pathognomonic for the posterior end of the inferior turbinate in **Hypertrophic Rhinitis**. * **Apple-Jelly Nodules:** Classic description for **Lupus Vulgaris**. * **Woody Hard Mass:** Often associated with **Rhinoscleroma** (caused by *Klebsiella rhinoscleromatis*). * **Treatment of choice for Hypertrophic Rhinitis:** Surgical reduction of the turbinate (e.g., partial turbinectomy, submucosal diathermy, or laser reduction) if medical management fails.

Q: A neonate with congenital heart disease (CHD) presents with cyanosis that is exacerbated by breathing and improved by crying. What is the most likely diagnosis?

Bilateral choanal atresia. **Explanation:** The clinical presentation described is a classic "textbook" scenario for **Bilateral Choanal Atresia**. **1. Why Option A is Correct:** Neonates are **obligate nasal breathers** until approximately 4–6 weeks of life. In bilateral choanal atresia, the posterior nasal passage is anatomically obstructed (bony or membranous). * **Cyanosis while feeding/breathing:** When the infant attempts to breathe through the nose (the natural instinct), the airway is blocked, leading to respiratory distress and cyanosis. * **Improvement with crying:** When the infant cries, they switch to **oral breathing**, which bypasses the nasal obstruction and allows for adequate oxygenation, leading to the resolution of cyanosis. This "cyclical cyanosis" is pathognomonic. **2. Why Other Options are Incorrect:** * **Option B (Diaphragmatic Hernia):** Presents with respiratory distress and a scaphoid abdomen, but cyanosis typically *worsens* with crying due to increased intrathoracic pressure and lung compression. * **Options C & D (Genitourinary defects/Coloboma):** These are components of the **CHARGE syndrome**, of which Choanal Atresia is a major feature. However, they are associated anomalies and do not directly cause the specific respiratory symptoms described. **Clinical Pearls for NEET-PG:** * **Diagnosis:** Failure to pass a 6F or 8F suction catheter through the nose into the oropharynx. * **Gold Standard Investigation:** CT scan (shows narrowing of the posterior choanae). * **Immediate Management:** Use of a **McGovern nipple** (an oral airway) to maintain a patent oral passage. * **CHARGE Association:** **C**oloboma, **H**eart defects, **A**tresia choanae, **R**etardation of growth, **G**enitourinary anomalies, **E**ar abnormalities.

Q: Nasal polyps most commonly develop in patients with which of the following conditions?

All of the above. **Explanation:** Nasal polyps are non-neoplastic, edematous masses of the sinonasal mucosa. They are not a single disease entity but rather the final common pathway of chronic mucosal inflammation. **Why "All of the Above" is correct:** Nasal polyps are multifactorial in origin. The underlying medical concept is that any condition causing **chronic inflammation** and **stasis of mucosal fluid** can lead to polyp formation (Bernoulli’s phenomenon). * **Aspirin Intolerance:** This is part of **Samter’s Triad** (Asthma, Aspirin sensitivity, and Nasal Polyposis). These patients have a deranged arachidonic acid metabolism, leading to an overproduction of leukotrienes, which are highly pro-inflammatory. * **Fungal Sinusitis:** Specifically, **Allergic Fungal Rhinosinusitis (AFRS)** is a major cause of extensive, recurrent nasal polyposis. It is an IgE-mediated hypersensitivity to fungal antigens (like *Aspergillus*). * **Chronic Rhinosinusitis (CRS):** While polyps are often associated with allergies, the majority of patients with CRS and nasal polyps (CRSwNP) actually have **non-allergic** eosinophilic inflammation. **High-Yield Clinical Pearls for NEET-PG:** 1. **Most Common Site:** The **Ethmoidal sinuses** (specifically the middle meatus/ostiomeatal complex) are the most common site for bilateral polyps. 2. **Histology:** Most polyps are characterized by an **eosinophilic infiltrate** and a basement membrane thickened by hyalinization. 3. **Unilateral Polyp:** In a child, always rule out an **Encephalocele**; in an adult, rule out **Inverted Papilloma** or Malignancy. 4. **Cystic Fibrosis:** This is the most common cause of nasal polyps in **children**. Any child with polyps must be screened for CF via a sweat chloride test. 5. **Kartagener’s Syndrome:** Also associated with nasal polyposis due to impaired mucociliary clearance.

Q: Rhinolith can cause perforation of the nasal septum by which mechanism?

Pressure necrosis. **Explanation:** A **Rhinolith** is a calcareous concretion formed by the gradual deposition of mineral salts (calcium and magnesium phosphates/carbonates) around an endogenous or exogenous foreign body nidus in the nasal cavity. **Why Pressure Necrosis is Correct:** As the rhinolith grows over time, it acts as a space-occupying lesion. Due to the rigid boundaries of the nasal cavity, the enlarging mass exerts continuous mechanical pressure on the adjacent mucosal surfaces and the underlying cartilaginous or bony structures. This persistent pressure compromises the local blood supply (ischemia), leading to **pressure necrosis**. When this occurs against the nasal septum, it results in a septal perforation. Similar mechanisms can lead to the destruction of the turbinates or erosion into the maxillary sinus or palate. **Why Other Options are Incorrect:** * **Malignant transformation:** Rhinoliths are benign, inorganic masses. While they can cause chronic irritation, they do not undergo neoplastic change. * **Autoimmune reaction:** The pathology is mechanical and chemical (mineral deposition), not an immune-mediated attack against self-antigens. * **Hypersensitivity reaction:** Rhinoliths cause a foreign body inflammatory response, but they do not trigger Type I-IV hypersensitivity pathways leading to tissue perforation. **Clinical Pearls for NEET-PG:** * **Presentation:** Typically presents as **unilateral** nasal obstruction and foul-smelling, blood-stained nasal discharge. * **Common Site:** Usually found on the floor of the nose, between the inferior turbinate and the septum. * **Diagnosis:** Often visible on anterior rhinoscopy as a greyish, hard, irregular mass; confirmed by CT scan (shows a radio-opaque mass with a central nidus). * **Treatment:** Surgical removal, usually via an endonasal approach. Large stones may require lithotripsy or a Caldwell-Luc approach.

Q: What is the drug of choice in rhinoscleromatosis?

Tetracycline. **Explanation:** **Rhinoscleroma** is a chronic, granulomatous disease of the upper respiratory tract caused by the Gram-negative bacillus ***Klebsiella rhinoscleromatis* (Frisch bacillus)**. It typically progresses through three stages: Catarrhal, Proliferative (Granulomatous), and Cicatricial (Fibrotic). **1. Why Tetracycline is the Correct Answer:** Tetracycline is classically considered the **drug of choice** for Rhinoscleroma. It is highly effective against *K. rhinoscleromatis* and is usually administered at a dose of 500 mg four times a day for a prolonged period (4–6 weeks or until two consecutive cultures from the lesion are negative). It helps in reducing the infectivity and halting the progression of the granulomatous stage. **2. Analysis of Incorrect Options:** * **Fluoroquinolones (e.g., Ciprofloxacin):** While modern studies show that Ciprofloxacin is highly effective and often used in clinical practice today due to better penetration, traditional textbooks and NEET-PG patterns still prioritize **Tetracycline** or **Streptomycin** as the standard academic answer. * **Aminoglycosides (e.g., Streptomycin):** Streptomycin is indeed effective and was historically used alongside Tetracycline. However, due to its ototoxic potential and the requirement for injections, it is generally considered a second-line or adjunct therapy rather than the primary drug of choice. **Clinical Pearls for NEET-PG:** * **Pathognomonic Cells:** Look for **Mikulicz cells** (large foamy macrophages containing the bacilli) and **Russell bodies** (eosinophilic hyaline inclusions in plasma cells) on histopathology. * **Biopsy:** The diagnosis is confirmed by biopsy and culture on **MacConkey agar**. * **Clinical Sign:** "Hebra nose" (woody hard swelling of the nose) is seen in the proliferative stage. * **Treatment Duration:** Long-term therapy is mandatory to prevent recurrence, which is common in the cicatricial stage.

Q: Aspirin hypersensitivity is seen in association with which of the following conditions?

Nasal polyposis. **Explanation:** The correct answer is **Nasal polyposis**. This association is a classic clinical triad known as **Samter’s Triad** (also called Aspirin-Exacerbated Respiratory Disease or AERD). 1. **Why Nasal Polyposis is correct:** Samter’s Triad consists of three conditions: **Bronchial Asthma, Nasal Polyposis (usually Ethmoidal), and Aspirin Hypersensitivity.** The underlying pathophysiology involves an abnormality in the arachidonic acid metabolism pathway. Inhibition of the COX-1 enzyme by aspirin leads to a shunting of metabolism toward the lipoxygenase pathway, resulting in an overproduction of **leukotrienes**. This causes chronic mucosal inflammation, leading to the formation of nasal polyps and bronchoconstriction. 2. **Why other options are incorrect:** * **Laryngeal papillomatosis:** Caused by Human Papillomavirus (HPV 6 and 11); it is a neoplastic condition unrelated to drug hypersensitivity. * **Sarcoid granuloma:** A systemic non-caseating granulomatous disease of unknown etiology; it does not have a specific association with aspirin. * **Otitis media:** An inflammatory or infectious condition of the middle ear, typically triggered by Eustachian tube dysfunction or bacterial/viral infections. **High-Yield Clinical Pearls for NEET-PG:** * **Widal’s Triad:** Another name for Samter’s Triad. * **Aspirin Desensitization:** This is often the treatment of choice for patients with AERD who do not respond to standard medical therapy. * **Leukotriene Antagonists:** Drugs like **Montelukast** are particularly effective in managing patients with this triad. * **Type of Polyp:** Nasal polyps in Samter’s triad are typically bilateral, multiple, and ethmoidal in origin.

Q: All of the following are true about inverted papilloma except?

Most common in males. **Explanation:** Inverted papilloma (Schneiderian papilloma) is a benign but locally aggressive sinonasal tumor. The question asks for the "except" statement, making **Option A** the correct answer because the statement "Most common in males" is actually **true**, but the provided key indicates it as the answer to be selected (likely due to a phrasing error in the question stem or key provided). In clinical reality, inverted papilloma is significantly more common in **males** (ratio 3:1 to 5:1), typically presenting in the 5th–7th decades of life. * **Option B (Arises from the lateral wall):** This is a true statement. The most common site of origin is the lateral nasal wall, specifically the region of the middle meatus or ethmoid sinuses. It rarely arises from the septum. * **Option C (Can cause epistaxis):** This is true. While unilateral nasal obstruction is the most common symptom, friable tumor tissue often leads to epistaxis. * **Option D (Recurrent in nature):** This is true. Inverted papillomas have a high recurrence rate (up to 20-30%) if not completely excised with a margin of healthy tissue. **High-Yield Clinical Pearls for NEET-PG:** 1. **Histology:** It is characterized by the inward proliferation of surface epithelium into the underlying stroma (hence "inverted"). 2. **Malignant Potential:** Associated with **Squamous Cell Carcinoma** in about 5-15% of cases. 3. **Treatment:** Gold standard is **Medial Maxillectomy** (Endoscopic or via Caldwell-Luc/Lateral Rhinotomy) to ensure complete removal. 4. **Imaging:** CT shows a unilateral soft tissue mass with characteristic "bony remodeling" or focal hyperostosis at the site of origin.

Q: All of the following are Eagleton’s criteria for diagnosing cavernous sinus thrombosis EXCEPT?

Unknown site of infection. **Explanation:** Cavernous Sinus Thrombosis (CST) is a life-threatening condition usually resulting from the retrograde spread of infection via the valveless ophthalmic veins (often from the "danger area" of the face or paranasal sinuses). To standardize the diagnosis, **Eagleton’s Criteria** are used. **1. Why "Unknown site of infection" is the correct answer:** Eagleton’s criteria specifically require a **known site of infection** (e.g., a furuncle on the nose, sinusitis, or dental infection). The diagnosis is based on identifying a primary septic focus that leads to the cavernous sinus involvement. Therefore, an "unknown site" contradicts the criteria. **2. Analysis of Incorrect Options:** * **Ocular nerve paralysis (Option B):** This is a hallmark of CST. The cavernous sinus contains Cranial Nerves III, IV, and VI (and branches of V). Paralysis of these nerves leads to ophthalmoplegia. * **Early obstructive signs (Option C):** Obstruction of the ophthalmic veins leads to venous congestion, resulting in characteristic proptosis (exophthalmos), chemosis, and retinal vein thrombosis/engorgement. * **Soft tissue abscesses (Option D):** Eagleton’s criteria include the development of abscesses in the soft tissues (like the orbit or face) as a result of the spreading thrombophlebitis. **NEET-PG High-Yield Pearls:** * **Most common causative organism:** *Staphylococcus aureus*. * **First sign:** Often the involvement of the **Abducens nerve (CN VI)** because it runs medially within the sinus (not in the lateral wall). * **Clinical progression:** CST often starts unilaterally but rapidly becomes **bilateral** due to connections via the intercavernous sinuses. * **Treatment:** High-dose intravenous antibiotics and anticoagulants (to prevent thrombus propagation).

Q: What are the pathognomic features of maxillary sinusitis?

Mucopus in the middle meatus. **Explanation:** The diagnosis of maxillary sinusitis is primarily clinical, supported by endoscopic and radiological findings. **1. Why "Mucopus in the middle meatus" is correct:** The maxillary sinus, along with the frontal and anterior ethmoid sinuses, drains into the **middle meatus** via the osteomeatal complex. In acute or chronic maxillary sinusitis, the presence of a "pus streak" or mucopurulent discharge specifically localized to the middle meatus (seen during anterior rhinoscopy or diagnostic nasal endoscopy) is a hallmark clinical sign. If the pus is wiped away and reappears upon lowering the head (Postural Test/Fraenkel’s Test), it confirms the maxillary origin. **2. Why the other options are incorrect:** * **Inferior turbinate hypertrophy:** This is a non-specific finding usually associated with allergic rhinitis, vasomotor rhinitis, or compensatory changes in a deviated nasal septum (DNS). * **Purulent nasal discharge:** While a symptom of sinusitis, it is **non-specific**. It can be seen in vestibulitis, foreign bodies, or any other sinus infection (frontal, ethmoid, or sphenoid). It does not localize the infection to the maxillary sinus. * **Atrophic sinusitis:** This is a chronic condition characterized by mucosal atrophy and crusting (e.g., Atrophic Rhinitis/Ozena), rather than the acute suppurative process seen in maxillary sinusitis. **Clinical Pearls for NEET-PG:** * **Antral Puncture (Proof Puncture):** The most definitive way to confirm pus in the maxillary sinus, performed through the **inferior meatus** (thinnest part of the medial wall). * **Radiology:** The **Waters’ View** (Occipitomental) is the best X-ray view to visualize the maxillary sinus. Look for "air-fluid levels" or "hazy opacification." * **First-line Investigation:** Non-contrast CT (NCCT) of the Paranasal Sinuses is the gold standard for chronic sinusitis.

Question 1

Which of the following is NOT a cause of epistaxis?

Accepted Answer

Allergic rhinitis

Answer

Nose picking

Answer

Foreign body

Answer

Thrombocytopenia

Question 2

Mulberry nasal mucosa is seen in?

Accepted Answer

Hypertrophic rhinitis

Answer

Lupus vulgaris

Answer

Atrophic rhinitis

Answer

None of the above

Question 3

A neonate with congenital heart disease (CHD) presents with cyanosis that is exacerbated by breathing and improved by crying. What is the most likely diagnosis?

Accepted Answer

Bilateral choanal atresia

Answer

Diaphragmatic hernia

Answer

Genitourinary defects

Answer

Coloboma

Question 4

Nasal polyps most commonly develop in patients with which of the following conditions?

Accepted Answer

All of the above

Answer

Aspirin intolerance

Answer

Fungal sinusitis

Answer

Chronic rhinosinusitis of non-allergic origin

Question 5

Rhinolith can cause perforation of the nasal septum by which mechanism?

Accepted Answer

Pressure necrosis

Answer

Malignant transformation

Answer

Autoimmune reaction

Answer

Hypersensitivity reaction

Question 6

What is the drug of choice in rhinoscleromatosis?

Accepted Answer

Tetracycline

Answer

Fluoroquinolone

Answer

Aminoglycosides

Answer

None of the above

Question 7

Aspirin hypersensitivity is seen in association with which of the following conditions?

Accepted Answer

Nasal polyposis

Answer

Laryngeal papillomatosis

Answer

Sarcoid granuloma

Answer

Otitis media

Question 8

All of the following are true about inverted papilloma except?

Accepted Answer

Most common in males

Answer

Arises from the lateral wall of the nose

Answer

Can cause epistaxis

Answer

Recurrent in nature even after removal

Question 9

All of the following are Eagleton’s criteria for diagnosing cavernous sinus thrombosis EXCEPT?

Accepted Answer

Unknown site of infection

Answer

Ocular nerve paralysis

Answer

Early obstructive signs such as retinal vein thrombosis and exophthalmos

Answer

Soft tissue abscesses

Question 10

What are the pathognomic features of maxillary sinusitis?

Accepted Answer

Mucopus in the middle meatus

Answer

Inferior turbinate hypertrophy

Answer

Purulent nasal discharge

Answer

Atrophic sinusitis

Diseases of the Nose and Paranasal Sinuses — MCQs

Diseases of the Nose and Paranasal Sinuses — MCQs

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