Diseases of the Nose and Paranasal Sinuses Practice Questions

Q: Which of the following statements about inverted papilloma are correct?

Can be premalignant. **Inverted Papilloma (Schneiderian Papilloma)** is a unique benign epithelial tumor of the nasal cavity that behaves aggressively. ### **Explanation of the Correct Option** **D. Can be premalignant:** Although histologically benign, inverted papilloma is notorious for its association with malignancy. In approximately **5–15% of cases**, it can undergo malignant transformation into **Squamous Cell Carcinoma (SCC)**. This risk, along with its high rate of local recurrence, necessitates wide surgical excision (usually via Endoscopic Sinus Surgery or Medial Maxillectomy) and long-term follow-up. ### **Explanation of Incorrect Options** * **A. Common in children:** This is incorrect. It typically affects adults in the **4th to 6th decades** of life, with a strong male predilection (M:F ratio of 4:1). * **B. Arises from the lateral wall:** While this is a common site of origin, the statement is technically incomplete or less definitive than its premalignant nature. It most commonly arises from the **lateral nasal wall** (middle meatus/ethmoid sinus region), but the question asks for the most defining characteristic among the choices. * **C. Always benign:** This is incorrect because of its **locally invasive** nature and the aforementioned risk of synchronous or metachronous malignancy. ### **NEET-PG High-Yield Pearls** * **Histology:** Characterized by the **endophytic growth** of surface epithelium into the underlying stroma (hence the name "inverted"). * **Etiology:** Strongly associated with **Human Papillomavirus (HPV) types 6 and 11**. * **Clinical Presentation:** Usually presents as **unilateral** nasal obstruction and epistaxis. On examination, it appears as a pale, bulky, "mulberry-like" mass. * **Radiology:** CT scans often show a unilateral soft tissue mass with characteristic **bony remodeling** or focal hyperostosis at the site of origin (useful for surgical planning).

Q: What is the most common cause of nasal polyps in children?

Allergic rhinitis. **Explanation:** Nasal polyps are non-neoplastic, edematous masses of sinonasal mucosa. In the pediatric population, the most common cause of nasal polyps is **Allergic Rhinitis**. Chronic inflammation of the nasal mucosa leads to increased capillary permeability and reactive stromal edema, eventually resulting in polyp formation. While **Cystic Fibrosis** is a classic systemic association for childhood polyps (and must be ruled out if polyps are bilateral), allergic rhinitis remains the most frequent underlying trigger in general clinical practice. **Analysis of Incorrect Options:** * **Human Papillomavirus (HPV):** This is an infectious agent associated with Squamous Papillomas and Inverted Papillomas, not the common inflammatory nasal polyp. * **Inverted Papilloma:** This is a benign but locally aggressive epithelial neoplasm. It typically presents in adults (40–60 years) and is usually unilateral; it is rare in children. * **Rhinosporidiosis:** Caused by *Rhinosporidium seeberi*, this presents as a friable, leafy, strawberry-like vascular mass. It is an infectious granuloma, not a true mucosal polyp, and is associated with bathing in stagnant water. **High-Yield Clinical Pearls for NEET-PG:** * **Rule of Thumb:** If a child presents with nasal polyps, the first systemic disease to exclude is **Cystic Fibrosis** (via a Sweat Chloride Test). * **Antrochoanal Polyp:** Usually solitary, unilateral, and originates from the maxillary sinus. It is more common in children/young adults and is often non-allergic. * **Ethmoidal Polyps:** Usually multiple, bilateral, and strongly associated with allergy or asthma (Samter’s Triad). * **Management:** Medical management (topical/systemic steroids) is first-line; Functional Endoscopic Sinus Surgery (FESS) is reserved for refractory cases.

Q: A 12-year-old adolescent male presents with a unilateral mass in the nose with recurrent spontaneous bleeding. On examination, a pink mass covered with mucosa is found in the nasopharynx. Which of the following is not to be done?

Biopsy for diagnosis. **Explanation:** The clinical presentation of a **12-year-old male** with a **unilateral nasopharyngeal mass** and **recurrent spontaneous epistaxis** is a classic "spot diagnosis" for **Juvenile Nasopharyngeal Angiofibroma (JNA)**. **Why Biopsy is Contraindicated (Correct Answer):** JNA is a benign but locally aggressive, **highly vascular tumor**. Because it consists of a dense network of thin-walled blood vessels without a contractile muscular coat, any trauma—including a biopsy—can lead to **profuse, life-threatening hemorrhage**. Diagnosis is primarily clinical and radiological; a biopsy is strictly contraindicated unless performed in an operating room under general anesthesia with preparations for immediate surgery, though it is generally avoided entirely. **Analysis of Other Options:** * **B. CECT is done:** Contrast-Enhanced CT is a standard investigation to assess bone destruction and the characteristic **Holman-Miller sign** (anterior bowing of the posterior wall of the maxillary sinus). * **C. Endoscopic surgery:** This is the treatment of choice for most JNA cases (Fish Stage I and II). It offers excellent visualization and lower morbidity compared to open approaches. * **D. Angioembolization:** This is a routine preoperative procedure performed 24–48 hours before surgery to reduce intraoperative blood loss by occluding the feeding vessel (usually the Internal Maxillary Artery). **High-Yield Clinical Pearls for NEET-PG:** * **Demographics:** Occurs almost exclusively in adolescent males (testosterone-dependent). * **Site of Origin:** Sphenopalatine foramen. * **Pathognomonic Sign:** Holman-Miller Sign (on CT) or Frog-face deformity (advanced clinical stage). * **Investigation of Choice:** Contrast-Enhanced CT (CECT) or MRI to assess intracranial extension. * **Gold Standard for Vascularity:** Digital Subtraction Angiography (DSA).

Q: Ground glass appearance of the maxillary sinus is typically seen in which of the following conditions?

Maxillary fibrous dysplasia. **Explanation:** **Fibrous dysplasia** is a benign bone disorder where normal bone marrow is replaced by fibro-osseous tissue. In the head and neck, it most commonly involves the maxilla. The hallmark radiological feature of fibrous dysplasia is a **"Ground Glass Appearance"** (smoky or cloudy appearance). This occurs because the disorganized arrangement of thin, poorly mineralized bone trabeculae creates a uniform, semi-opaque density on X-ray or CT scans. **Analysis of Incorrect Options:** * **Maxillary Sinusitis:** Typically presents as generalized opacification of the sinus or an air-fluid level. It does not show the characteristic bony trabecular pattern of ground glass. * **Maxillary Carcinoma:** Usually presents as an irregular soft tissue mass with evidence of **aggressive bony destruction** and infiltration into surrounding structures, rather than a uniform ground-glass density. * **Maxillary Polyp:** Appears as a smooth, soft tissue density within the sinus cavity. While it may cause expansion of the sinus walls due to pressure, it does not involve the internal bony remodeling seen in fibrous dysplasia. **High-Yield Clinical Pearls for NEET-PG:** * **Radiological Sign:** Ground glass appearance is the "buzzword" for Fibrous Dysplasia. * **Monostotic vs. Polyostotic:** Monostotic (single bone) is more common in the craniofacial region. * **McCune-Albright Syndrome:** Triad of polyostotic fibrous dysplasia, café-au-lait spots (Coast of Maine borders), and precocious puberty. * **Management:** Usually conservative (observation) unless there is functional impairment or significant deformity, in which case surgical "shaving" or contouring is preferred over radical excision.

Q: A 30-year-old male presents with right-sided nasal obstruction and recurrent epistaxis. On examination, a mulberry mass with white dots is seen in the right nostril. What is true about this disease?

Should be managed by excision with cautery at the base.. **Explanation:** The clinical presentation of a **mulberry-like mass with white dots** (sporangia) in a patient with nasal obstruction and epistaxis is classic for **Rhinosporidiosis**. **1. Why Option A is Correct:** Rhinosporidiosis is highly vascular and has a high rate of recurrence. The gold standard treatment is **wide surgical excision** (usually via endonasal approach) followed by **electrocautery of the base**. Cauterization is crucial because it destroys the remaining endospores and minimizes intraoperative bleeding, significantly reducing the risk of recurrence. **2. Why the Other Options are Incorrect:** * **Option B:** While the name suggests a fungal origin, *Rhinosporidium seeberi* is actually an **aquatic parasite** (Mesomycetozoea), not a fungus. * **Option C:** **Mikulicz cells** (foamy macrophages) and Russell bodies are histological hallmarks of **Rhinoscleroma** (caused by *Klebsiella rhinoscleromatis*), not Rhinosporidiosis. Rhinosporidiosis histology shows sporangia containing thousands of endospores. * **Option D:** **Rifampicin** is used in the treatment of Rhinoscleroma or Leprosy. For Rhinosporidiosis, the only medical adjunct sometimes used to prevent recurrence is **Dapsone**, though surgery remains primary. **Clinical Pearls for NEET-PG:** * **Etiology:** Associated with bathing in stagnant pond water. * **Common Site:** Nasal septum and floor of the nose. * **Pathognomonic Sign:** "Strawberry" or "Mulberry" appearance with white dots (representing mature sporangia). * **Diagnosis:** Confirmed by biopsy showing large, thick-walled sporangia containing endospores (Gomori Methenamine Silver or H&E stain).

Q: Large nasal cavity with thick crust formation internally and a 'woody' feel of the external nose is characteristic of which condition?

Rhinoscleroma. **Explanation:** **Rhinoscleroma** is a chronic granulomatous disease caused by *Klebsiella rhinoscleromatis* (Frisch bacillus). It typically progresses through three stages: Catarrhal (atrophic), Proliferative (granulomatous), and Cicatricial (fibrotic). * **Why it is correct:** In the **atrophic stage**, patients present with a large nasal cavity and foul-smelling crusts (mimicking atrophic rhinitis). However, as it progresses to the **proliferative stage**, painless, non-ulcerating granulomas form. These granulomas eventually undergo fibrosis in the **cicatricial stage**, leading to the characteristic **"woody" or "hard" feel** of the external nose and potential stenosis of the nares. **Why other options are incorrect:** * **Rhinosporidiosis:** Caused by *Rhinosporidium seeberi*, it presents as a leafy, strawberry-like, friable vascular polyp, usually following exposure to stagnant water. It does not cause a "woody" external nose. * **Atrophic Rhinitis:** While it features a large nasal cavity and thick green crusts (roomy nose), it is characterized by atrophy of the mucosa and turbinates, not the "woody" induration seen in Rhinoscleroma. * **Vasomotor Rhinitis:** A non-allergic condition characterized by nasal congestion and watery rhinorrhea triggered by autonomic instability; it lacks crusting or structural changes. **High-Yield Clinical Pearls for NEET-PG:** * **Biopsy findings:** Look for **Mikulicz cells** (foamy macrophages containing the bacilli) and **Russell bodies** (eosinophilic hyaline inclusions in plasma cells). * **Drug of Choice:** Streptomycin and Tetracycline are traditionally used; Ciprofloxacin is also effective. * **Involvement:** It typically starts in the nose but can involve the nasopharynx, larynx (subglottis), and trachea.

Q: The lamina papyracea is anatomically situated between which structures?

Ethmoid sinus and orbit. ### Explanation **1. Why the Correct Answer is Right:** The **lamina papyracea** (also known as the orbital plate of the ethmoid bone) is a paper-thin, smooth bone that forms the **lateral wall of the ethmoid sinus** and the **medial wall of the orbit**. Anatomically, it serves as the delicate partition separating these two structures. Its extreme thinness makes it the most common site for the spread of infection from the ethmoid air cells into the orbit, leading to orbital cellulitis. **2. Why the Incorrect Options are Wrong:** * **Option A (Optic nerve and orbit):** The optic nerve is located within the orbit (posteriorly) and enters via the optic canal. The lamina papyracea is a bony wall, not a divider between a nerve and its cavity. * **Option B (Maxillary sinus and orbit):** The structure separating the maxillary sinus from the orbit is the **orbital floor** (maxillary bone), which is the site of "blow-out" fractures. * **Option C (Cranial cavity and orbit):** The **roof of the orbit** (frontal bone) and the **cribriform plate** (ethmoid bone) separate the orbit and nasal cavity from the anterior cranial fossa. **3. Clinical Pearls & High-Yield Facts for NEET-PG:** * **Orbital Cellulitis:** The lamina papyracea is the most common route for the spread of ethmoiditis into the orbit (Chandler’s Classification). * **FESS Landmark:** During Functional Endoscopic Sinus Surgery (FESS), accidental penetration of the lamina papyracea can lead to orbital hematoma or injury to the medial rectus muscle. * **Haller Cells:** These are infraorbital ethmoid air cells that grow into the floor of the orbit/roof of the maxillary sinus. * **Thickness:** It is one of the thinnest bones in the human body, hence the name "papyracea" (Latin for paper-like).

Q: Foul-smelling nasal discharge is seen in all except?

Choanal atresia. **Explanation:** The hallmark of **foul-smelling (cacosmia), unilateral nasal discharge** in clinical practice is usually the presence of necrotic tissue, decaying organic matter, or specific bacterial putrefaction. **Why Choanal Atresia is the correct answer:** Choanal atresia is a congenital narrowing or occlusion of the posterior nasal aperture. It presents with a **thick, gelatinous, and odorless** discharge (due to accumulated goblet cell secretions that cannot drain into the nasopharynx). It does not involve tissue necrosis or foreign material decay, thus it lacks the characteristic foul smell. **Analysis of Incorrect Options:** * **Nasal Myiasis:** Caused by infestation with maggots (usually *Chrysomyia bezziana*). The larvae cause extensive tissue destruction and necrosis, leading to a classic, repulsive putrid odor. * **Foreign Body in Nose:** A long-standing foreign body (especially organic) triggers a local inflammatory response, secondary bacterial infection, and suppuration, resulting in unilateral, foul-smelling, purulent discharge. * **Rhinolith:** These are "nasal stones" formed by the deposition of mineral salts around a neglected foreign body nidus. They cause pressure necrosis of the mucosa and trap secretions, leading to a characteristic malodor. **High-Yield Clinical Pearls for NEET-PG:** * **Unilateral foul-smelling discharge in a child:** Always rule out a **Foreign Body** first. * **Unilateral foul-smelling discharge in an elderly patient:** Always rule out **Malignancy**. * **Bilateral Choanal Atresia:** A neonatal emergency because newborns are obligatory nasal breathers. It presents with cyclic cyanosis (relieved by crying). * **Other causes of foul discharge:** Atrophic rhinitis (Merciful anosmia), Chronic Sinusitis (especially fungal or dental origin), and Midline Lethal Granuloma.

Question 1

Which of the following statements about inverted papilloma are correct?

Accepted Answer

Can be premalignant

Answer

Is common in children

Answer

Arises from the lateral wall

Answer

Always benign

Question 2

What is the most common cause of nasal polyps in children?

Accepted Answer

Allergic rhinitis

Answer

Human papillomavirus

Answer

Inverted papilloma

Answer

Rhinosporidiosis

Question 3

A 12-year-old adolescent male presents with a unilateral mass in the nose with recurrent spontaneous bleeding. On examination, a pink mass covered with mucosa is found in the nasopharynx. Which of the following is not to be done?

Accepted Answer

Biopsy for diagnosis

Answer

CECT is done

Answer

Endoscopic surgery

Answer

Angioembolization

Question 4

Cyanosis in a newborn that disappears on crying is characteristic of which condition?

Accepted Answer

Bilateral choanal atresia

Answer

Laryngocoele

Answer

Unilateral choanal atresia

Answer

Foreign body

Question 5

Ground glass appearance of the maxillary sinus is typically seen in which of the following conditions?

Accepted Answer

Maxillary fibrous dysplasia

Answer

Maxillary Sinusitis

Answer

Maxillary Carcinoma

Answer

Maxillary polyp

Question 6

A 30-year-old male presents with right-sided nasal obstruction and recurrent epistaxis. On examination, a mulberry mass with white dots is seen in the right nostril. What is true about this disease?

Accepted Answer

Should be managed by excision with cautery at the base.

Answer

Caused by the fungus Rhinosporidium.

Answer

Biopsy shows Miculicz cells.

Answer

Rifampicin is indicated for treatment.

Question 7

Which of the following is NOT implicated in the etiology of atrophic rhinitis?

Accepted Answer

Deviated nasal septum (DNS)

Answer

Chronic sinusitis

Answer

Nasal deformity

Answer

Strong hereditary factors

Question 8

Large nasal cavity with thick crust formation internally and a 'woody' feel of the external nose is characteristic of which condition?

Accepted Answer

Rhinoscleroma

Answer

Rhinosporidiosis

Answer

Atrophic rhinitis

Answer

Vasomotor rhinitis

Question 9

The lamina papyracea is anatomically situated between which structures?

Accepted Answer

Ethmoid sinus and orbit

Answer

Optic nerve and orbit

Answer

Maxillary sinus and orbit

Answer

Cranial cavity and orbit

Question 10

Foul-smelling nasal discharge is seen in all except?

Accepted Answer

Choanal atresia

Answer

Nasal myiasis

Answer

Foreign body in nose

Answer

Rhinolith

Diseases of the Nose and Paranasal Sinuses — MCQs

Diseases of the Nose and Paranasal Sinuses — MCQs

On this page

Practice by Chapter

Want unlimited practice?