Question

Which of the following is not correct for ethmoidal polyp?

• A. Allergy is an etiological factor
• B. Occur in first decade of life
• C. Are bilateral
• D. Are often associated with bronchial asthma

Hint:

Ethmoidal polyps are usually bilateral, allergy related, asthma associated, and seen in adults, not young children.

Answer 1

The Correct Option is B

Step 1: Recall the typical profile of ethmoidal (nasal) polyps.
Ethmoidal polyps arise from the mucosa of the ethmoid sinus, most often as part of an allergic or inflammatory process. They are typically seen in adults, most commonly between the third and fifth decades of life, and are uncommon in young children.

Step 2: Check option (A), allergy as a cause.
Allergic rhinitis and chronic inflammation are well established causes of ethmoidal polyp formation, so this statement is correct and not the answer.

Step 3: Check option (B), first decade of life.
Ethmoidal polyps are uncommon in the first decade of life. When nasal polyps are seen in a young child, they should raise suspicion for cystic fibrosis rather than being treated as routine ethmoidal polyps. This makes the statement that they occur in the first decade of life incorrect for typical ethmoidal polyps.

Step 4: Check option (C), bilateral distribution.
Ethmoidal polyps are classically bilateral and multiple, arising from ethmoidal air cells on both sides, unlike the antrochoanal polyp, which is typically unilateral and single. So this statement is correct.

Step 5: Check option (D), association with asthma.
Ethmoidal polyps are frequently associated with bronchial asthma and aspirin sensitivity, together known as the aspirin-exacerbated respiratory disease triad (nasal polyps, asthma, aspirin intolerance). So this statement is correct.

Step 6: Final Answer.
The statement that is NOT correct is that ethmoidal polyps occur in the first decade of life.
\[ \boxed{\text{Occur in first decade of life}} \]