The most common site of sinusitis in children(( REPEAT QUESTION)
**Core Concept**
The question tests the understanding of **paranasal sinus anatomy** and **pediatric sinusitis**. Sinusitis in children often involves the **ethmoid sinuses** due to their early development and drainage issues.
**Why the Correct Answer is Right**
The **ethmoid sinuses** are the most common site of sinusitis in children because they are present at birth and are more prone to infection due to their complex anatomy and poor drainage. The **ethmoid air cells** can become obstructed, leading to bacterial overgrowth and infection.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because, although the maxillary sinuses are also present at birth, they are less commonly affected than the ethmoid sinuses in children.
**Option B:** The frontal sinuses are not fully developed until late childhood, making them a less common site for sinusitis in young children.
**Option D:** The sphenoid sinuses are the least likely to be affected in children due to their late development and relatively isolated location.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that **ethmoid sinusitis** can spread to surrounding structures, including the orbit, leading to serious complications such as orbital cellulitis.
**Correct Answer:** D is not provided so assuming the ethmoid sinuses are the correct answer: **Correct Answer: C. Ethmoid sinuses**