Diseases of the Nose and Paranasal Sinuses Practice Questions

Q: Which of the following statements regarding nasolabial cyst is TRUE?

Usually seen in adults. ***Usually seen in adults*** - **Nasolabial cysts** most commonly manifest in **adulthood**, typically in the fourth to fifth decades of life. - This presentation is consistent across various demographic studies of these **rare developmental cysts**. *Presents submucosally in anterior nasal floor* - **Nasolabial cysts** typically present as a swelling in the **nasolabial fold region**, beneath the ala of the nose. - While they can extend internally, their primary presentation is not usually described as submucosal in the anterior nasal floor; rather they are more lateral and superior. *Bilateral* - **Nasolabial cysts** are almost exclusively **unilateral**, with bilateral presentation being exceedingly rare. - The vast majority of reported cases describe a single cyst on one side of the face. *Arises from odontogenic epithelium* - **Nasolabial cysts** are thought to arise from remnants of the **nasolacrimal duct**, or possibly from entrapped epithelium during facial development, specifically at the fusion of the maxillary, lateral nasal, and medial nasal processes. - They are not considered to be of **odontogenic origin**, which refers to cysts arising from tooth-forming tissues.

Q: Which test is suitable to elicit mouth breathers?

On intra-oral clinical examination. ***On intra-oral clinical examination*** - An intra-oral examination allows for direct observation of conditions that can indicate **mouth breathing**, such as a **dry mouth (xerostomia)**, generalized gingivitis, or an **anterior open bite**. - In mouth breathers, the oral mucosa often appears dry and irritated due to constant exposure to air, making this a reliable clinical sign. *Nasal airflow test* - While this test assesses nasal patency, it doesn't directly confirm **mouth breathing** itself, as individuals with restricted nasal airflow might still attempt to breathe through their nose. - It primarily helps identify **nasal obstruction** as a potential cause for mouth breathing but isn't a definitive diagnostic tool for the behavior itself. *On inspection* - **Inspection** can reveal some external signs like a constantly open mouth or an elongated face, but these are not always definitive and can be subjective. - It may suggest mouth breathing but is not as precise as an intra-oral examination or a dental mirror test to *directly elicit* the act of breathing through the mouth. *All of the options* - While all these methods can provide *some* information related to mouth breathing, an **intra-oral clinical examination** directly uncovers the *signs and effects* of mouth breathing within the oral cavity. - No single method is comprehensive alone, but intra-oral exam provides the most direct clinical evidence among the given choices.

Q: Which of the following surgeries is contraindicated below 12 years of age?

SMR. ***SMR (Submucous Resection of the septum)*** - SMR procedure involves removing a significant portion of the **septal cartilage and bone**, which is crucial for nasal growth. - Performing SMR before 12 years of age can lead to severe **facial growth disturbances**, such as a saddle nose deformity, due to interference with the septal growth plate. *Rhinoplasty* - While rhinoplasty is generally delayed until nasal growth is complete (around 15-16 years old for girls, 16-17 for boys), it is not absolutely contraindicated structurally before 12 in the same way SMR is. - The concern is primarily about final aesthetic outcome and patient maturity, not direct damage to major growth centers. *Septoplasty* - **Septoplasty** can be performed in younger children for severe nasal obstruction, especially if it significantly impacts breathing or sleep. - It involves reshaping or repositioning the **septal cartilage and bone** with minimal removal, preserving growth potential. *Antral puncture* - **Antral puncture** (or antral lavage) is a procedure to drain the maxillary sinus and can be performed at any age when indicated for sinusitis. - It does not interfere with facial growth as it targets the sinus cavity walls and does not involve the nasal septum.

Q: Partial closure of the nose is performed in which condition?

Atrophic rhinitis. ***Atrophic rhinitis*** - **Partial closure of the nose** (Young's operation or naris plasty) is a surgical procedure used to reduce the size of the nasal passages and improve airflow in patients with atrophic rhinitis. - This condition involves progressive **atrophy of the nasal mucosa** and turbinates, leading to dryness, crusting, paradoxical obstruction, and often a foul odor. *Vasomotor rhinitis* - This condition involves **non-allergic rhinitis** triggered by environmental changes, temperature shifts, or irritants, causing symptoms like sneezing, rhinorrhea, and nasal congestion. - Management typically involves **avoidance of triggers**, nasal corticosteroids, or anticholinergic sprays, not surgical closure of the nose. *Allergic rhinitis* - Caused by an ** IgE-mediated immune response** to airborne allergens, leading to inflammation of the nasal mucosa, sneezing, itching, rhinorrhea, and congestion. - Treatment focuses on **allergen avoidance**, antihistamines, and nasal corticosteroids; surgical modification of nasal passages is not indicated. *Occupational rhinitis* - This form of rhinitis is caused by exposure to **irritants or allergens in the workplace**, leading to nasal symptoms similar to allergic or non-allergic rhinitis. - Management involves **identifying and avoiding the offending agent** at work, and medical treatments like nasal sprays, but not surgical narrowing of the nostrils.

Q: Most common site of maxillary sinus mucocele is:

Medial wall. ***Medial wall*** - The **medial wall** of the maxillary sinus, particularly the **inferomedial aspect** near the **maxillary ostium**, is the most common site for mucocele formation when maxillary mucoceles occur. - **Ostial obstruction** at the **natural ostium** (located in the medial wall opening into the middle meatus) leads to mucus accumulation and subsequent mucocele formation. - Note: **Maxillary sinus mucoceles are rare** (accounting for only ~10% of all paranasal sinus mucoceles; frontal and ethmoidal are more common overall). - The proximity to the **nasal cavity** and drainage pathway makes this the primary site of origin. *Posterior wall* - Mucoceles rarely originate from the **posterior wall** of the maxillary sinus. - This area may be involved by **secondary expansion** of a mucocele but is not a typical site of primary formation. *Anterior wall* - The **anterior wall** is less frequently the site of primary mucocele formation. - While mucoceles can **expand and erode** any wall, including anterior, this is not the most common initial site. *Roof* - The **roof** (superior wall) of the maxillary sinus is an uncommon site for primary mucocele formation. - Roof involvement typically occurs with **extensive mucocele expansion** rather than representing the initial site of obstruction and mucus accumulation.

Q: Assertion: Nasal polyps are commonly associated with aspirin-exacerbated respiratory disease (AERD). Reason: Aspirin directly causes nasal polyp formation in all patients with AERD.

Assertion is true, but Reason is false.. ***Assertion is true, but Reason is false.*** - The **assertion is correct** because nasal polyps are a hallmark feature of **aspirin-exacerbated respiratory disease (AERD)**, also known as **Samter's Triad** (asthma, aspirin sensitivity, chronic rhinosinusitis with nasal polyposis). - The **reason is false** because aspirin does not directly *cause* nasal polyp formation. Instead, aspirin triggers a severe inflammatory reaction in predisposed individuals through **COX-1 inhibition**, leading to an imbalance in **eicosanoid metabolism** with overproduction of **pro-inflammatory leukotrienes (LTC4, LTD4, LTE4)**. - Nasal polyps in AERD result from **chronic eosinophilic inflammation** and underlying mucosal disease, not direct causation by aspirin. *Both Assertion and Reason are true, and Reason is the correct explanation for Assertion.* - This is incorrect because the reason is fundamentally false. - Aspirin does not directly cause polyp formation; it exacerbates pre-existing inflammatory conditions in susceptible individuals. *Both Assertion and Reason are true, but Reason is not the correct explanation for Assertion.* - This is incorrect because the reason itself is false, not merely an incorrect explanation. - The pathophysiology involves aspirin triggering inflammation in predisposed patients, not causing the polyps directly. *Both Assertion and Reason are false.* - This is incorrect because the assertion is medically accurate. - Nasal polyps are indeed commonly associated with AERD and represent one component of the classic **Samter's Triad**.

Q: Which of the following signs is not typically seen in allergic rhinitis?

Koplik spots. ***Koplik spots*** - **Koplik spots** are pathognomonic for **measles (rubeola)**, appearing as small, white spots on the buccal mucosa. - They are a viral exanthem symptom and have no association with **allergic rhinitis**. *Dennie-Morgan lines* - **Dennie-Morgan lines** refer to extra folds of skin beneath the lower eyelid, often associated with a genetic predisposition to **atopy** and recurrent allergic conjunctivitis. - While not exclusive to allergic rhinitis, their presence indicates a heightened allergic tendency. *Allergic shiners* - **Allergic shiners** are dark, shadowy areas under the eyes, resulting from venous congestion secondary to chronic nasal obstruction and inflammation in allergic rhinitis. - This is a common physical sign reflecting the impact of allergic processes on facial vasculature. *Allergic salute* - An **allergic salute** is a characteristic upward rub of the nose with the palm of the hand, often seen in children to relieve nasal itching and clear mucus. - This action can lead to a visible crease across the bridge of the nose, known as the "allergic crease."

Q: A patient with a recent upper respiratory infection develops worsening facial pain, purulent nasal discharge, and tenderness over the maxillary sinuses. Symptoms have now persisted for more than 10 days without improvement. What is the most appropriate initial treatment?

Amoxicillin-clavulanate. ***Amoxicillin-clavulanate*** - Symptoms persisting >10 days with **purulent nasal discharge** and **facial pain** meet criteria for **acute bacterial rhinosinusitis**, making this the **first-line empirical antibiotic treatment**. - Provides broad-spectrum coverage against common pathogens including **Streptococcus pneumoniae**, **Haemophilus influenzae**, and **beta-lactamase producing organisms**. *Topical decongestant* - While it may provide temporary **symptomatic relief** by reducing nasal congestion, it does not address the underlying **bacterial infection**. - Prolonged use (>3-5 days) can lead to **rhinitis medicamentosa** with rebound congestion, worsening the clinical picture. *Antihistamine* - Primarily effective for **allergic rhinitis** by blocking histamine-mediated symptoms like sneezing and watery discharge. - **Ineffective against bacterial infections** and may worsen symptoms by drying mucous membranes and impairing **mucociliary clearance**. *Corticosteroid* - **Intranasal corticosteroids** may serve as adjunctive therapy to reduce inflammation but are insufficient as **monotherapy** for bacterial sinusitis. - Does not provide antimicrobial coverage needed for the suspected **bacterial pathogen** causing the persistent purulent symptoms.

Q: Which of the following statements about nasal polyps is the MOST accurate?

They are usually benign.. ***They are usually benign.*** - The vast majority of **nasal polyps** are benign inflammatory lesions, originating from the nasal or sinus mucosa. - They are not considered neoplastic, differentiating them from malignant tumors that can occur in the nasal cavity. *They are more common in adults than children.* - While nasal polyps can occur in children, especially in association with **cystic fibrosis** or primary ciliary dyskinesia, they are still significantly more prevalent in adults. - The peak incidence is typically in individuals between 40 and 60 years old. *They are commonly associated with aspirin sensitivity.* - **Aspirin-exacerbated respiratory disease (AERD)**, also known as Samter's triad, is a specific syndrome characterized by asthma, recurrent nasal polyps, and aspirin sensitivity. - However, not all patients with nasal polyps have aspirin sensitivity; it's a specific subset of patients. *They are a complication of chronic sinusitis.* - While **chronic rhinosinusitis with nasal polyps (CRSwNP)** is a common presentation, and polyps often develop in the context of chronic inflammation, they are not strictly a "complication." - Rather, nasal polyp formation is a manifestation or an end-stage of a specific inflammatory process within chronic rhinosinusitis, not merely an incidental side effect.

Q: Which of the following is NOT typically associated with acute bacterial sinusitis?

Epistaxis. ***Epistaxis*** - While possible due to **mucosal inflammation** or irritation from forceful blowing, **epistaxis (nosebleeds)** is not considered a typical or primary symptom of acute bacterial sinusitis. - The main symptoms revolve around pressure, discharge, and systemic signs of infection. *Purulent nasal discharge* - This is a hallmark symptom of acute bacterial sinusitis, indicating the presence of **bacterial infection** and inflammation in the sinuses. - The discharge is often thick, colored (yellow, green), and can be accompanied by a **foul odor**. *Facial pain* - **Facial pain** or pressure, especially around the cheeks, forehead, or eyes, is a characteristic symptom stemming from inflammation and fluid accumulation within the **sinus cavities**. - This pain often worsens when bending forward. *Fever* - **Fever** is a systemic sign of infection and is commonly present in acute bacterial sinusitis, especially in more severe cases. - It indicates the body's immune response to the bacterial invasion.

Question 1

Which of the following statements regarding nasolabial cyst is TRUE?

Accepted Answer

Usually seen in adults

Answer

Presents submucosally in anterior nasal floor

Answer

Bilateral

Answer

Arises from odontogenic epithelium

Question 2

Which test is suitable to elicit mouth breathers?

Accepted Answer

On intra-oral clinical examination

Answer

Nasal airflow test

Answer

On inspection

Answer

All of the options

Question 3

Which of the following surgeries is contraindicated below 12 years of age?

Accepted Answer

SMR

Answer

Rhinoplasty

Answer

Septoplasty

Answer

Antral puncture

Question 4

Partial closure of the nose is performed in which condition?

Accepted Answer

Atrophic rhinitis

Answer

Vasomotor rhinitis

Answer

Allergic rhinitis

Answer

Occupational rhinitis

Question 5

Most common site of maxillary sinus mucocele is:

Accepted Answer

Medial wall

Answer

Posterior wall

Answer

Anterior wall

Answer

Roof

Question 6

Assertion: Nasal polyps are commonly associated with aspirin-exacerbated respiratory disease (AERD). Reason: Aspirin directly causes nasal polyp formation in all patients with AERD.

Accepted Answer

Assertion is true, but Reason is false.

Answer

Both Assertion and Reason are true, and Reason is the correct explanation for Assertion.

Answer

Both Assertion and Reason are false.

Answer

Both Assertion and Reason are true, but Reason is not the correct explanation for Assertion.

Question 7

Which of the following signs is not typically seen in allergic rhinitis?

Accepted Answer

Koplik spots

Answer

Dennie-Morgan lines

Answer

Allergic shiners

Answer

Allergic salute

Question 8

A patient with a recent upper respiratory infection develops worsening facial pain, purulent nasal discharge, and tenderness over the maxillary sinuses. Symptoms have now persisted for more than 10 days without improvement. What is the most appropriate initial treatment?

Accepted Answer

Amoxicillin-clavulanate

Answer

Corticosteroid

Answer

Antihistamine

Answer

Topical decongestant

Question 9

Which of the following statements about nasal polyps is the MOST accurate?

Accepted Answer

They are usually benign.

Answer

They are more common in adults than children.

Answer

They are commonly associated with aspirin sensitivity.

Answer

They are a complication of chronic sinusitis.

Question 10

Which of the following is NOT typically associated with acute bacterial sinusitis?

Accepted Answer

Epistaxis

Answer

Purulent nasal discharge

Answer

Facial pain

Answer

Fever

Diseases of the Nose and Paranasal Sinuses — MCQs

Diseases of the Nose and Paranasal Sinuses — MCQs

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