Diseases of the Nose and Paranasal Sinuses Practice Questions

Q: Walsham's forceps are used to:

Reduce nasal bone fractures. **Explanation:** **Walsham’s Forceps** are specialized instruments used in the management of **nasal bone fractures**. The primary objective of using these forceps is to manipulate and realign the fractured nasal bones (reduction). The instrument features two blades: one is covered with a rubber sleeve to protect the skin (external), while the other is curved and thin to be inserted into the nasal cavity (internal). Unlike Asch’s forceps, the blades of Walsham’s forceps do not meet when the handles are closed, allowing them to grasp the nasal bone without crushing it. This allows the surgeon to "disimpact" and reposition the fractured fragments into their anatomical alignment. **Analysis of Incorrect Options:** * **A & B (Remove teeth/root):** Dental extraction requires forceps with specific beaks designed to grip the crown or root of a tooth (e.g., Upper Universal or Lower Molar forceps). Walsham’s forceps are too long and lack the necessary grip for dental procedures. * **C (Clamp blood vessels):** Hemostasis is achieved using hemostatic forceps (Artery forceps/Mosquito forceps), which have serrated jaws and a ratcheted locking mechanism to occlude vessels. Walsham’s forceps are non-ratcheted and too bulky for this purpose. **High-Yield Clinical Pearls for NEET-PG:** * **Walsham’s vs. Asch’s Forceps:** Walsham’s is used to reduce **nasal bone** fractures (lateral displacement), while **Asch’s forceps** are primarily used to straighten a deviated or fractured **nasal septum**. * **Timing of Reduction:** In adults, nasal fractures should be reduced within 7–14 days before malunion occurs. In children, this should be done within 5–7 days due to rapid healing. * **Protection:** Always remember that the **padded/rubber-covered blade** of Walsham’s forceps goes on the **outside** to prevent skin necrosis or bruising.

Q: Little's area is situated in the nasal cavity in which region?

Anteroinferior. **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 (nosebleeds), accounting for approximately 90% of cases. 1. **Why Anteroinferior is Correct:** This region sits just inside the nasal vestibule on the septal cartilage. It is the site of an arterial anastomosis involving four (sometimes five) arteries: the **Greater Palatine**, **Sphenopalatine**, **Superior Labial**, and **Anterior Ethmoidal** arteries. Its superficial location and exposure to inspired air make it prone to drying and trauma (e.g., nose picking). 2. **Why Other Options are Incorrect:** * **Anterosuperior:** This area is primarily supplied by the ethmoidal arteries but does not contain the confluence of vessels known as Little's area. * **Posterosuperior/Posteroinferior:** These regions correspond to the territory of **Woodruff’s Plexus**, located over the posterior end of the middle turbinate. Bleeding from here is "Posterior Epistaxis," which is more common in elderly or hypertensive patients and is harder to control. **High-Yield Clinical Pearls for NEET-PG:** * **Vessels of Kiesselbach’s Plexus:** Remember the mnemonic **"G-S-S-A"** (Greater palatine, Sphenopalatine, Superior labial, Anterior ethmoidal). Note: The *Posterior Ethmoidal* artery is generally **not** part of this plexus. * **Woodruff’s Plexus:** Located posteriorly; the main vessel involved is the **Sphenopalatine artery** (the "Artery of Epistaxis"). * **Management:** Most bleeding from Little’s area can be controlled by **Trott’s method** (pinching the soft part of the nose) or chemical cautery (Silver Nitrate).

Q: Tapir nose is a complication of which of the following conditions?

Rhinoscleroma. **Explanation:** **Rhinoscleroma** is a chronic granulomatous disease caused by **Klebsiella rhinoscleromatis** (Frisch bacillus). The disease typically progresses through three stages: Catarrhal, Proliferative (Granulomatous), and Cicatricial (Fibrotic). The **"Tapir Nose"** appearance occurs during the **proliferative stage**. In this phase, there is significant granulomatous infiltration of the nasal skin, subcutaneous tissues, and the upper lip. This leads to a woody, painless swelling and broadening of the nose, mimicking the snout of a Tapir. **Analysis of Incorrect Options:** * **Atrophic Rhinitis:** Characterized by "roomy" nasal cavities, foul-smelling crusts (ozaena), and atrophy of the turbinates. It does not cause external granulomatous swelling. * **Rhinosporidiosis:** Caused by *Rhinosporidium seeberi*, it typically presents as a leafy, strawberry-like polypoid mass that is highly vascular and bleeds on touch. It does not typically produce the "Tapir nose" deformity. * **Syphilis:** Congenital syphilis is associated with a **"Saddle nose"** deformity (destruction of the nasal bridge/septum), not the hypertrophic Tapir nose. **High-Yield Clinical Pearls for NEET-PG:** * **Microscopy:** Look for **Mikulicz cells** (large foamy macrophages containing bacilli) and **Russell bodies** (eosinophilic hyaline inclusions in plasma cells). * **Drug of Choice:** Streptomycin and Tetracycline are traditionally used; Ciprofloxacin is also effective. * **Biopsy:** This is the definitive diagnostic gold standard. * **Hebra Nose:** Another term sometimes used synonymously with the external deformity of Rhinoscleroma.

Q: In rhinosporidiosis, which of the following statements is true?

Surgery is the primary treatment.. **Explanation:** Rhinosporidiosis is a chronic granulomatous infection caused by **Rhinosporidium seeberi**. Although historically classified as a fungus, it is now known to be an aquatic protistan parasite (Mesomycetozoea). **1. Why Option C is Correct:** The primary treatment for rhinosporidiosis is **wide surgical excision** (usually via endonasal or endoscopic approach) with **cauterization of the base**. Cautery is crucial to prevent recurrence, which is common due to the spillage of endospores during surgery. Medical therapy (like Dapsone) is only an adjunct used to prevent recurrence by arresting the maturation of sporangia. **2. Why Other Options are Incorrect:** * **Option A:** While it forms a granuloma, *R. seeberi* is **not a fungus**. It is a water-borne parasite. This is a common "trap" in exams. * **Option B:** The mass is typically **strawberry-like** (leafy, polypoid, and friable) with a **vascular, reddish/pink appearance**. The surface is studded with tiny white dots, which represent mature sporangia containing endospores. Greyish masses are more characteristic of simple ethmoidal polyps. * **Option D:** Radiotherapy has no role in the management of this infectious/parasitic condition; it is reserved for malignancies. **High-Yield Clinical Pearls for NEET-PG:** * **Epidemiology:** Most common in South India (Tamil Nadu, Kerala) and Sri Lanka; associated with bathing in stagnant pond water. * **Histopathology:** Characterized by large, thick-walled **sporangia** containing thousands of **endospores** (visible on H&E, PAS, or GMS stains). * **Site:** The **nasal septum** and inferior turbinate are the most common sites. * **Transmission:** Transepithelial infection via traumatized epithelium.

Q: A 45-year-old man presents with breathing difficulties and signs of airway obstruction on physical examination. A CT scan reveals a nasal polyp obstructing the airway. Drainage from which of the following structures is also likely to be obstructed?

Maxillary sinus. **Explanation:** The correct answer is **B. Maxillary sinus**. The clinical scenario describes a nasal polyp causing airway obstruction. In clinical practice, the most common type of nasal polyp is the **Antrochoanal polyp**. These polyps originate from the mucosa of the **maxillary sinus** (specifically near the accessory ostium). They grow to fill the maxillary antrum, exit through the natural or accessory ostium into the middle meatus, and then extend posteriorly toward the choana, obstructing the airway. Because the polyp physically occupies the ostium of the maxillary sinus as it exits, it directly leads to the obstruction of drainage from that specific sinus. **Analysis of Incorrect Options:** * **A. Sphenoid sinus:** This sinus drains into the sphenoethmoidal recess, located far posterior and superior to the typical path of an antrochoanal or ethmoidal polyp. * **C. Ethmoidal sinus:** While ethmoidal polyps (multiple/bilateral) originate here, the question implies a single obstructing mass. Even in ethmoidal polyposis, the primary drainage of the maxillary sinus (via the middle meatus) is more frequently compromised by the bulk of the polypoid tissue. * **D. Frontal sinus:** This drains into the frontal recess of the middle meatus. While it can be obstructed by large polyps, the maxillary sinus is the primary site of origin for the classic solitary obstructing polyp (Antrochoanal). **NEET-PG High-Yield Pearls:** * **Antrochoanal Polyp (Killian’s Polyp):** Usually solitary, unilateral, and seen in children/young adults. It has three parts: Antral, Nasal, and Choanal. * **Radiology:** On CT, it appears as a soft tissue mass filling the maxillary sinus and extending into the nasopharynx through the widened ostium (**"Dumbbell shape"**). * **Treatment of Choice:** Functional Endoscopic Sinus Surgery (FESS). Simple polypectomy has a high recurrence rate.

Q: Which is the most commonly involved paranasal sinus in fibrous dysplasia?

Maxillary sinus. **Explanation:** **Fibrous dysplasia** is a benign, non-neoplastic bone disorder where normal bone is replaced by cellular fibrous tissue and disorganized bony trabeculae (classically described as "Chinese letter" or "alphabet soup" patterns on histology). 1. **Why Maxillary Sinus is Correct:** In the craniofacial region, fibrous dysplasia most frequently involves the **maxilla** and the **mandible**. When specifically considering the paranasal sinuses, the **maxillary sinus** is the most commonly affected site. It typically presents as a painless, slow-growing swelling causing facial asymmetry. Radiologically, it shows a characteristic **"ground-glass appearance"** with ill-defined borders that blend into normal bone. 2. **Why Other Options are Incorrect:** * **Ethmoid, Frontal, and Sphenoid Sinuses:** While these sinuses can be involved (especially in the polyostotic form or as an extension of skull base disease), they are statistically less common primary sites compared to the maxilla. The frontal bone is the second most common site in the cranium, but the maxillary sinus remains the top answer for sinus involvement. **Clinical Pearls for NEET-PG:** * **Monostotic vs. Polyostotic:** Monostotic (70%) involves one bone; Polyostotic involves multiple bones. * **McCune-Albright Syndrome:** Polyostotic fibrous dysplasia + Café-au-lait spots (Coast of Maine borders) + Precocious puberty. * **Jaffe-Lichtenstein Syndrome:** Polyostotic fibrous dysplasia + Café-au-lait spots (without endocrine involvement). * **Management:** Observation for asymptomatic cases; surgical "contouring" or debulking after skeletal maturity for cosmetic/functional issues. **Radiotherapy is contraindicated** as it increases the risk of malignant transformation to osteosarcoma.

Q: What is the most common site of carcinoma of the paranasal sinuses?

Maxillary. **Explanation:** The **Maxillary sinus** is the most common site for malignancies of the paranasal sinuses, accounting for approximately **80% of all cases**. Among these, **Squamous Cell Carcinoma (SCC)** is the most frequent histological subtype (about 80%), followed by adenoid cystic carcinoma and adenocarcinoma. * **Why Maxillary is Correct:** Due to its large surface area and constant exposure to inhaled carcinogens and chronic inflammatory stimuli, the maxillary antrum is the primary site for sinus neoplasia. Most patients present in advanced stages (T3 or T4) because the sinus is a "silent" cavity where tumors can grow significantly before causing obstructive symptoms or facial swelling. * **Why others are Incorrect:** * **Ethmoid Sinus:** This is the second most common site (approx. 15-20%). Notably, **Adenocarcinoma** of the ethmoid sinus is strongly associated with occupational exposure to **wood dust**. * **Frontal and Sphenoid Sinuses:** These are extremely rare sites for primary carcinoma, each accounting for less than 1-2% of cases. **High-Yield Clinical Pearls for NEET-PG:** 1. **Ohngren’s Line:** An imaginary line connecting the medial canthus of the eye to the angle of the mandible. Tumors situated **posterosuperior** to this line have a poorer prognosis due to early involvement of the orbit, ethmoids, and infratemporal fossa. 2. **Dutton's/Lederman’s Classification:** Uses two horizontal lines (passing through the floor of the orbit and floor of the antrum) to divide the area into infrastructure, mesostructure, and suprastructure. 3. **Risk Factors:** Exposure to nickel, isopropyl alcohol, and thorium dioxide (Thorotrast) are linked to maxillary SCC.

Q: A 72-year-old man presents to the emergency department complaining of frequent nose-bleeds. What is the most likely site of acute epistaxis?

Septum. **Explanation:** The most common site for acute epistaxis is the **nasal septum**, specifically the anteroinferior portion known as **Kiesselbach’s plexus** (or Little’s area). This area is a highly vascular watershed zone where four to five arteries anastomose (Sphenopalatine, Greater palatine, Superior labial, and Anterior ethmoidal arteries). Because this region is located near the nares, it is highly susceptible to trauma, digital irritation, and drying of the mucosa, making it the source of approximately 90% of all nosebleeds. **Analysis of Options:** * **Turbinates (A):** While the turbinates are highly vascularized (especially the inferior turbinate), they are rarely the primary site of spontaneous acute epistaxis compared to the septum. * **Maxillary & Ethmoid Sinuses (C & D):** Bleeding from the sinuses is uncommon and usually associated with severe trauma, malignancy, or chronic inflammatory conditions. These represent "posterior" or "deep" sources, which are far less frequent than anterior septal bleeds. **NEET-PG High-Yield Pearls:** * **Little’s Area (Kiesselbach’s Plexus):** Most common site for **Anterior Epistaxis**. * **Woodruff’s Plexus:** Located over the posterior end of the middle turbinate; it is the most common site for **Posterior Epistaxis** (often seen in elderly or hypertensive patients). * **Artery of Epistaxis:** The **Sphenopalatine artery** is the most common vessel involved in posterior epistaxis. * **First-line Management:** Firm pressure on the nasal alae (Trott’s maneuver) for 10–15 minutes. If this fails, anterior nasal packing or chemical cautery (silver nitrate) is indicated.

Q: A 16-year-old girl presented with a history of nasal obstruction for the last 2 months. A CT scan was performed, revealing the following findings. What is the most likely diagnosis?

Antrochoanal polyp. ***Antrochoanal polyp*** - CT scan typically shows a **smooth, soft tissue mass** originating from the **maxillary sinus** extending through the **accessory ostium** with a characteristic **dumbbell appearance** into the choana and nasopharynx. - Common in **adolescent females** presenting with **unilateral nasal obstruction**, which matches this clinical presentation perfectly. *Juvenile Nasopharyngeal Angiofibroma* - This condition occurs **exclusively in adolescent males** due to hormonal influences, making it impossible in a 16-year-old girl. - CT shows a **highly vascular mass** in the nasopharynx with **epistaxis** as a prominent symptom, which is not mentioned here. *Nasopharyngeal carcinoma* - Typically occurs in **older adults** (40-60 years) and is rare in adolescents, especially without associated symptoms like **hearing loss** or **cranial nerve palsies**. - CT shows **irregular, infiltrative masses** with **cervical lymphadenopathy**, unlike the smooth appearance of antrochoanal polyps. *Adenoid hypertrophy* - More common in **younger children** (3-7 years) and typically causes **bilateral nasal obstruction** rather than unilateral symptoms. - CT shows **symmetric enlargement** of adenoid tissue in the nasopharynx without the characteristic **maxillary sinus origin** seen in antrochoanal polyps.

Question 1

Walsham's forceps are used to:

Accepted Answer

Reduce nasal bone fractures

Answer

Remove teeth

Answer

Remove root

Answer

Clamp blood vessels

Question 2

Little's area is situated in the nasal cavity in which region?

Accepted Answer

Anteroinferior

Answer

Anterosuperior

Answer

Posteroinferior

Answer

Posterosuperior

Question 3

Tapir nose is a complication of which of the following conditions?

Accepted Answer

Rhinoscleroma

Answer

Atrophic rhinitis

Answer

Rhinosporidiosis

Answer

Syphilis

Question 4

In rhinosporidiosis, which of the following statements is true?

Accepted Answer

Surgery is the primary treatment.

Answer

It is characterized by a fungal granuloma.

Answer

It presents as a greyish mass.

Answer

Radiotherapy is a treatment modality.

Question 5

A 45-year-old man presents with breathing difficulties and signs of airway obstruction on physical examination. A CT scan reveals a nasal polyp obstructing the airway. Drainage from which of the following structures is also likely to be obstructed?

Accepted Answer

Maxillary sinus

Answer

Sphenoid sinus

Answer

Ethmoidal sinus

Answer

Frontal sinus

Question 6

Which is the most commonly involved paranasal sinus in fibrous dysplasia?

Accepted Answer

Maxillary sinus

Answer

Frontal sinus

Answer

Ethmoid sinus

Answer

Sphenoid sinus

Question 7

What is the most common site of carcinoma of the paranasal sinuses?

Accepted Answer

Maxillary

Answer

Frontal

Answer

Ethmoid

Answer

Sphenoid

Question 8

A 72-year-old man presents to the emergency department complaining of frequent nose-bleeds. What is the most likely site of acute epistaxis?

Accepted Answer

Septum

Answer

Turbinate

Answer

Maxillary sinus

Answer

Ethmoid sinus

Question 9

A patient presented to ENT OPD with complaints of headache and nasal stuffiness. On CT scan, heterogeneous opacification involving multiple sinuses along with bone erosion was noticed. What would be the most likely diagnosis?

Accepted Answer

Allergic Fungal rhinosinusitis

Answer

Acute bacterial rhinosinusitis

Answer

Chronic Bacterial rhinosinusitis

Answer

Invasive Fungal Rhinosinusitis

Question 10

A 16-year-old girl presented with a history of nasal obstruction for the last 2 months. A CT scan was performed, revealing the following findings. What is the most likely diagnosis?

Accepted Answer

Antrochoanal polyp

Answer

Juvenile Nasopharyngeal Angiofibroma

Answer

Nasopharyngeal carcinoma

Answer

Adenoid hypertrophy

Diseases of the Nose and Paranasal Sinuses — MCQs

Diseases of the Nose and Paranasal Sinuses — MCQs

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