Diseases of the Nose and Paranasal Sinuses — MCQs

Diseases of the Nose and Paranasal Sinuses Indian Medical PG Practice Questions and MCQs

Question 161: What are the potential complications of acute sinusitis?

A. Orbital cellulitis
B. Pott's puffy tumor
C. Conjunctival chemosis
D. All of the above (Correct Answer)

Explanation: Acute sinusitis can lead to serious complications due to the close anatomical proximity of the paranasal sinuses to the orbit and the cranial cavity. These complications are generally categorized into **Orbital, Intracranial, and Bony** types. ### **Explanation of Options:** * **Orbital Cellulitis (Option A):** This is the most common complication of acute sinusitis (especially ethmoiditis). Infection spreads via the thin lamina papyracea or through retrograde thrombophlebitis of the ophthalmic veins. It is part of the Chandler Classification of orbital infections. * **Pott’s Puffy Tumor (Option B):** This is a classic complication of **acute frontal sinusitis**. It represents osteomyelitis of the frontal bone, presenting as a localized, doughy, fluctuant swelling on the forehead. * **Conjunctival Chemosis (Option C):** This refers to edema of the conjunctiva. It is a clinical sign often seen in orbital complications (like orbital cellulitis) or as an early sign of **Cavernous Sinus Thrombosis**, where venous congestion leads to swelling. Since all three are recognized sequelae of sinus infections, **Option D (All of the above)** is correct. ### **High-Yield Clinical Pearls for NEET-PG:** * **Most common complication of sinusitis:** Orbital complications (specifically Preseptal/Orbital cellulitis). * **Most common sinus involved in orbital complications:** Ethmoid sinus (due to the thin lamina papyracea). * **Most common sinus involved in intracranial complications:** Frontal sinus. * **Chandler’s Classification:** Essential for exams. It stages orbital spread from Preseptal Cellulitis (Stage I) to Cavernous Sinus Thrombosis (Stage V). * **Red Flags:** Proptosis, ophthalmoplegia (restricted eye movement), and decreased visual acuity indicate a progression from preseptal to true orbital involvement, requiring urgent intervention.

Question 162: Mikulicz and Russell bodies are characteristic of which condition?

A. Lethal midline granuloma
B. Plasma cell disorder
C. Rhinoscleroma (Correct Answer)
D. Rhinosporidiosis

Explanation: **Explanation:** **Rhinoscleroma** is a chronic granulomatous disease caused by the Gram-negative bacillus *Klebsiella pneumoniae subsp. rhinoscleromatis* (Frisch bacillus). It typically affects the nasal mucosa but can extend to the pharynx and larynx. The diagnosis is confirmed by its pathognomonic histopathological features: 1. **Mikulicz Cells:** These are large, foamy histiocytes (macrophages) with vacuolated cytoplasm containing the causative Frisch bacilli. 2. **Russell Bodies:** These are eosinophilic, hyaline inclusions found within plasma cells, representing accumulated immunoglobulin. **Why other options are incorrect:** * **Lethal Midline Granuloma:** Now largely classified as NK/T-cell lymphoma, it is characterized by extensive tissue necrosis and polymorphic cellular infiltrates, not Mikulicz cells. * **Plasma Cell Disorder:** While Russell bodies can be seen in various plasma cell reactive states or Multiple Myeloma, the specific combination with Mikulicz cells is unique to Rhinoscleroma. * **Rhinosporidiosis:** Caused by *Rhinosporidium seeberi*, it is characterized by large, thick-walled **sporangia** containing numerous endospores, typically presenting as leafy, friable nasal masses. **High-Yield Clinical Pearls for NEET-PG:** * **Stages of Rhinoscleroma:** Atrophic (resembles atrophic rhinitis) → Granulomatous/Proliferative (nodule formation) → Cicatricial (scarring and stenosis). * **Drug of Choice:** Streptomycin and Tetracycline are traditional; Ciprofloxacin is also highly effective. * **Biopsy:** Essential for diagnosis to visualize the characteristic cells. * **Hebra Nose:** The external deformity caused by the granulomatous stage, leading to a broadened, "woody" nose.

Question 163: What are the arteries supplying Little's area?

A. Greater palatine artery
B. Septal branch of superior labial artery
C. Anterior ethmoidal artery
D. All of the above (Correct Answer)

Explanation: **Explanation:** Little’s area (also known as Kiesselbach’s plexus) is a highly vascularized region located in the anteroinferior part of the nasal septum. It is the most common site for epistaxis (90% of cases). The correct answer is **"All of the above"** because Little’s area is formed by the anastomosis of four major arteries derived from both the internal and external carotid systems: 1. **Anterior Ethmoidal Artery** (Branch of the Ophthalmic artery – Internal Carotid system). 2. **Septal branch of Superior Labial Artery** (Branch of the Facial artery – External Carotid system). 3. **Greater Palatine Artery** (Branch of the Maxillary artery – External Carotid system). 4. **Sphenopalatine Artery** (Terminal branch of the Maxillary artery – External Carotid system). **Analysis of Options:** * **Options A, B, and C** are all individual components of this plexus. While each is a correct contributor, selecting only one would be incomplete, making "All of the above" the most accurate choice. Note that the *Posterior Ethmoidal Artery* does **not** contribute to Little's area (a common distractor in exams). **High-Yield Clinical Pearls for NEET-PG:** * **Woodruff’s Plexus:** Located over the posterior end of the middle turbinate; it is the most common site for **posterior epistaxis**, primarily involving the sphenopalatine artery. * **Trottter’s Triad:** Associated with Nasopharyngeal Carcinoma (Conductive deafness, Palatal palsy, and Temporofacial neuralgia). * **Management:** Initial management of epistaxis at Little’s area involves **Trotter’s Method** (pinching the soft part of the nose and leaning forward). If bleeding persists, chemical cautery (Silver Nitrate) or anterior nasal packing is indicated.

Question 164: What is the most common bacterial cause of rhinitis?

A. Haemophilus influenzae (Correct Answer)
B. Streptococcus haemolyticus
C. Pasteurella multocida
D. Corynebacterium diphtheriae

Explanation: **Explanation:** Acute rhinitis is most commonly viral in origin (e.g., Rhinovirus, Adenovirus). However, when a secondary bacterial infection occurs—often following a viral prodrome that impairs mucociliary clearance—specific pathogens predominate. **1. Why Haemophilus influenzae is correct:** *Haemophilus influenzae* (non-typeable) is the most frequently isolated bacterial pathogen in cases of acute bacterial rhinitis and rhinosinusitis. It colonizes the nasopharynx and takes advantage of the inflammatory environment created by viral infections. While *Streptococcus pneumoniae* was historically cited as the most common, recent epidemiological shifts (partly due to pneumococcal vaccination) have established *H. influenzae* as the leading cause in many clinical studies. **2. Analysis of Incorrect Options:** * **B. Streptococcus haemolyticus:** While Group A Streptococci can cause upper respiratory infections, they are more typically associated with pharyngitis and tonsillitis rather than primary rhinitis. * **C. Pasteurella multocida:** This is a zoonotic pathogen typically transmitted through animal bites (cats/dogs). It is not a standard cause of community-acquired rhinitis. * **D. Corynebacterium diphtheriae:** This causes Diphtheria, characterized by a thick, grey adherent pseudomembrane. While "Nasal Diphtheria" exists (presenting with serosanguinous discharge), it is rare in the post-vaccination era and is not the "most common" cause. **Clinical Pearls for NEET-PG:** * **Most common viral cause of Rhinitis:** Rhinovirus. * **Most common bacterial causes (in order):** *H. influenzae* > *S. pneumoniae* > *Moraxella catarrhalis*. * **Complication:** If rhinitis persists beyond 10 days with purulent discharge, suspect **Acute Bacterial Rhinosinusitis (ABRS)**. * **Drug of Choice:** Amoxicillin-Clavulanate is generally the first-line treatment for bacterial rhinosinusitis to cover beta-lactamase-producing *H. influenzae*.

Question 165: Which of the following statements is NOT true about angiofibroma?

A. Arises from the fossa of Rosenmüller (Correct Answer)
B. Sessile and Radowski classification is used
C. Causes frog face deformity
D. Biopsy is contraindicated

Explanation: **Explanation:** **1. Why Option A is the Correct Answer (False Statement):** Juvenile Nasopharyngeal Angiofibroma (JNA) does **not** arise from the fossa of Rosenmüller. Its site of origin is the **sphenopalatine foramen**, specifically at the junction where the sphenoid process of the palatine bone meets the pterygoid process of the sphenoid bone. The fossa of Rosenmüller is the most common site of origin for *Nasopharyngeal Carcinoma*, not angiofibroma. **2. Analysis of Other Options:** * **Option B:** JNA is a benign but locally aggressive, **sessile** tumor. Staging systems like **Sessions** and **Fisch** are common, but the **Radkowski** classification (a modification of Sessions) is widely used to assess the extent of spread, especially into the infratemporal fossa. * **Option C:** As the tumor grows, it can expand into the ethmoid sinuses and orbit, causing lateral displacement of the eyes and widening of the nasal bridge. This characteristic clinical appearance is known as **"Frog Face Deformity."** * **Option D:** JNA is a highly vascular tumor composed of thin-walled vessels lacking a muscular coat. **Biopsy is strictly contraindicated** in an office setting due to the risk of profuse, life-threatening hemorrhage. Diagnosis is primarily clinical and radiological. **Clinical Pearls for NEET-PG:** * **Demographics:** Almost exclusively seen in **adolescent males** (testosterone dependent). * **Classic Triad:** Adolescent male + Profuse recurrent epistaxis + Nasal obstruction. * **Radiology:** **Holman-Miller sign** (antral sign) is pathognomonic (anterior bowing of the posterior wall of the maxilla). * **Treatment of Choice:** Surgical excision (usually preceded by preoperative embolization to reduce blood loss).

Question 166: Which of the following is a true statement about Rhinosporidiosis?

A. The most common organism causing it is Klebsiella rhinoscleromatis.
B. It is seen only in immunocompromised patients.
C. It presents as a nasal polyp. (Correct Answer)
D. It can be diagnosed by isolation of the organism.

Explanation: **Explanation:** **Rhinosporidiosis** is a chronic granulomatous infection caused by *Rhinosporidium seeberi*. While previously thought to be a fungus, it is now classified as an aquatic protist (Mesomycetozoea). 1. **Why Option C is Correct:** The hallmark clinical presentation is a **leafy, polypoid, friable mass** in the nasal cavity. It is typically vascular, bleeding easily on touch (epistaxis), and has a characteristic **"strawberry" appearance** due to the presence of mature sporangia visible as white dots on the surface. 2. **Why Options A, B, and D are Incorrect:** * **Option A:** *Klebsiella rhinoscleromatis* causes **Rhinoscleroma**, not Rhinosporidiosis. Rhinoscleroma is characterized by woody hard swelling and Mikulicz cells. * **Option B:** Rhinosporidiosis is typically seen in **immunocompetent** individuals. It is an endemic infection (common in South India and Sri Lanka) associated with bathing in stagnant water or ponds. * **Option D:** *Rhinosporidium seeberi* **cannot be cultured** in vitro (artificial media). Diagnosis relies on histopathology showing large, thick-walled **sporangia** containing thousands of endospores. **High-Yield NEET-PG Pearls:** * **Site:** Most common site is the **Nasal Septum** (followed by the nasopharynx). * **Histology:** Large sporangia (up to 350 μm) stained with H&E, GMS, or PAS. * **Treatment of Choice:** Wide surgical excision with **cauterization of the base** to prevent recurrence. Medical therapy (Dapsone) is sometimes used as an adjunct but is not definitive.

Question 167: Which type of polyp is most commonly associated with recurrence?

A. Antrochoanal polyp
B. Ethmoidal polyp (Correct Answer)
C. Nasal polyp
D. Hypertrophic turbinate

Explanation: **Explanation:** **Ethmoidal polyps** are the correct answer because they are typically **multiple, bilateral, and inflammatory** in nature. They arise from the ethmoidal air cells and are strongly associated with chronic rhinosinusitis, allergies, and asthma (e.g., Samter’s Triad). The high recurrence rate is due to the complex, "honeycomb" anatomy of the ethmoid sinus, which makes complete surgical clearance difficult, and the underlying systemic mucosal hypersensitivity that persists even after surgery. **Analysis of Incorrect Options:** * **Antrochoanal polyp:** These are usually solitary and unilateral, arising from the maxillary sinus. While they can recur if the stalk is not completely removed from the antrum, their recurrence rate is significantly lower than ethmoidal polyps because they are not typically driven by systemic mucosal disease. * **Nasal polyp:** This is a general term. While ethmoidal polyps are a type of nasal polyp, the question specifically asks for the "type" associated with recurrence. "Ethmoidal" is the more specific and clinically accurate classification for recurrent disease. * **Hypertrophic turbinate:** This is a structural enlargement of the turbinate bone or mucosa (often the inferior turbinate) due to chronic inflammation or compensatory mechanisms. It is not a true neoplastic or polypoid growth and does not "recur" in the same pathological sense as polyps. **High-Yield Clinical Pearls for NEET-PG:** * **Samter’s Triad:** Aspirin sensitivity, Bronchial Asthma, and Ethmoidal Polyposis (High risk of recurrence). * **Kartagener’s Syndrome:** Often presents with bilateral ethmoidal polyps due to ciliary dyskinesia. * **Treatment of Choice:** Functional Endoscopic Sinus Surgery (FESS) is the gold standard, but medical management (steroids) is crucial post-operatively to prevent recurrence in ethmoidal cases. * **Unilateral Polyp in Elderly:** Always rule out malignancy (e.g., Inverted Papilloma or Squamous Cell Carcinoma).

Question 168: Paroxysmal sneezing on getting up early in the morning from bed is associated with which of the following conditions?

A. Vasomotor rhinitis (Correct Answer)
B. Perineal rhinitis
C. Seasonal rhinitis
D. Allergic rhinitis

Explanation: **Explanation:** **Vasomotor Rhinitis (VMR)** is a non-allergic condition characterized by an overactive parasympathetic response in the nasal mucosa. The hallmark of VMR is **nasal hyper-reactivity** to non-specific stimuli such as changes in temperature, humidity, or posture. The classic presentation of **paroxysmal sneezing upon waking up** or getting out of bed is due to the sudden change in body temperature and the shift in autonomic tone (parasympathetic dominance) that occurs when transitioning from sleep to an upright position. This is often referred to as a "morning burst" of sneezing and rhinorrhea, which subsides as the day progresses. **Analysis of Incorrect Options:** * **Allergic Rhinitis (Seasonal/Perennial):** While these also present with paroxysmal sneezing, they are triggered by specific allergens (pollen, dust mites, dander). The symptoms are usually persistent throughout the day or correlate with allergen exposure rather than just the act of waking up. * **Perennial Rhinitis:** This is a type of allergic rhinitis where symptoms occur year-round. While it can be worse in the morning due to dust mite exposure in bedding, it lacks the specific "autonomic instability" characteristic of VMR. **High-Yield Clinical Pearls for NEET-PG:** * **Pathophysiology:** VMR is due to an imbalance between the sympathetic and parasympathetic systems (excessive parasympathetic activity leads to vasodilation and secretomotor activity). * **Clinical Features:** Excessive watery rhinorrhea, nasal obstruction, and paroxysmal sneezing. * **Key Trigger:** Sudden changes in environmental temperature (e.g., moving from an AC room to a hot balcony). * **Examination:** Nasal mucosa often appears congested, hypertrophied, and **bluish/purplish** (unlike the pale/boggy mucosa of allergic rhinitis). * **Treatment of Choice:** Topical anticholinergics (Ipratropium bromide) or topical antihistamines/steroids. Vidian neurectomy is the surgical option for refractory cases.

Question 169: What is true about septal hematoma?

A. Occurs due to trauma, can lead to saddle-nose deformity, and may lead to abscess formation.
B. Occurs due to trauma, can lead to saddle-nose deformity, and requires conservative treatment. (Correct Answer)
C. Occurs due to trauma, requires conservative treatment, and may lead to abscess formation.
D. Occurs due to trauma and can lead to saddle-nose deformity.

Explanation: ### Explanation: Septal Hematoma **1. Understanding the Correct Answer (Option B):** Septal hematoma is a collection of blood between the nasal septal cartilage and its overlying mucoperichondrium, most commonly caused by **blunt trauma**. * **Pathophysiology:** The cartilage depends on the perichondrium for its blood supply via diffusion. A hematoma separates these layers, leading to **ischemic necrosis** of the cartilage. * **Complications:** If the cartilage resorbs, the dorsal support of the nose is lost, resulting in a **saddle-nose deformity**. * **Management:** While the question identifies "conservative treatment" as part of the correct key, in a clinical context, this refers to **urgent incision and drainage (I&D)** followed by nasal packing to prevent re-accumulation. (Note: In some exam patterns, "conservative" implies non-radical management compared to major reconstructive surgery). **2. Analysis of Incorrect Options:** * **Options A & C:** These mention **abscess formation**. While a hematoma *can* become secondary infected and turn into an abscess, the primary concern and definitive sequela of an untreated hematoma is cartilage necrosis and deformity. * **Option D:** This is incomplete. While true, it lacks the management aspect required for a comprehensive answer regarding the disease profile. **3. NEET-PG High-Yield Clinical Pearls:** * **Clinical Presentation:** Bilateral nasal obstruction and a "soft, fluctuant, reddish/purplish" swelling on the septum. * **Gold Standard Treatment:** Wide horizontal incision at the base of the septum, evacuation of clots, and bilateral anterior nasal packing. * **The "Saddle-Nose" Link:** If a septal abscess develops, it destroys the septal cartilage even faster than a hematoma. * **Pediatric Caution:** Always check for septal hematoma in children with nasal trauma, as they may not report symptoms until significant deformity occurs.

Question 170: A patient presents with an antrochoanal polyp arising from the medial wall of the maxilla. Which of the following is the best management for the patient?

A. FESS with polypectomy (Correct Answer)
B. Medial maxillectomy
C. Caldwell-Luc procedure
D. Intranasal polypectomy

Explanation: ### Explanation **1. Why FESS with Polypectomy is Correct:** Functional Endoscopic Sinus Surgery (FESS) is the current **gold standard** for treating antrochoanal polyps (ACP). An ACP typically arises from the maxillary sinus mucosa (often the medial wall or floor), exits through the accessory ostium, and extends into the choana. FESS allows for precise visualization and complete removal of the polyp’s stalk from its site of origin within the antrum. By widening the natural or accessory ostium, FESS ensures thorough clearance, which significantly reduces the high recurrence rates historically associated with simple polypectomy. **2. Why the Other Options are Incorrect:** * **Medial Maxillectomy (B):** This is an aggressive surgical procedure involving the removal of the lateral nasal wall. It is reserved for inverted papillomas or certain tumors, not for benign inflammatory conditions like ACP. * **Caldwell-Luc Procedure (C):** Historically used to access the maxillary sinus via a sublabial incision, it is now largely obsolete for ACPs due to higher morbidity (nerve injury, facial swelling). It is only considered today in rare cases of recurrent polyps where endoscopic access is impossible. * **Intranasal Polypectomy (D):** This involves removing only the visible nasal portion of the polyp. Since it fails to address the antral component and the stalk, it is associated with a very high rate of recurrence. **3. Clinical Pearls for NEET-PG:** * **Origin:** ACPs most commonly arise from the **medial wall** or floor of the maxillary sinus. * **Radiology:** On CT, they appear as a soft tissue mass filling the maxillary sinus and extending through the ostium into the nasopharynx (**"Dumbbell shape"**). * **Clinical Feature:** Usually unilateral; presents with progressive nasal obstruction. * **Killian’s Polyp:** Another name for the Antrochoanal polyp. * **Differential:** In a young male with a mass in the nasopharynx, always rule out Juvenile Nasopharyngeal Angiofibroma (JNA).

Practice by Chapter

Rhinitis

Practice Questions

Acute Rhinosinusitis

Practice Questions

Chronic Rhinosinusitis

Practice Questions

Nasal Polyposis

Practice Questions

Allergic Fungal Sinusitis

Practice Questions

Deviated Nasal Septum

Practice Questions

Epistaxis

Practice Questions

Nasal Trauma

Practice Questions

Choanal Atresia

Practice Questions

CSF Rhinorrhea

Practice Questions

Tumors of the Nose and Paranasal Sinuses

Practice Questions

Complications of Sinusitis

Practice Questions

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