Kaagener’s syndrome includes all except –
**Core Concept**
Kaagener's syndrome, also known as primary ciliary dyskinesia, is a rare genetic disorder characterized by impaired ciliary function, leading to chronic respiratory infections, infertility, and other complications. This condition is caused by defects in the dynein arms or radial spokes of cilia, which are essential for their motility and function.
**Why the Correct Answer is Right**
The correct answer is one that does not belong to the typical triad of features associated with Kaagener's syndrome. This syndrome is classically characterized by chronic sinusitis, bronchiectasis, and situs inversus. Situs inversus is a condition where the major visceral organs are reversed or mirrored from their normal positions, which is a hallmark of Kaagener's syndrome. Chronic sinusitis and bronchiectasis are also common features due to the impaired ciliary function.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not provided, so we cannot evaluate its accuracy.
**Option B:** This option is not provided, so we cannot evaluate its accuracy.
**Option C:** This option is not provided, so we cannot evaluate its accuracy.
**Option D:** This option is not provided, so we cannot evaluate its accuracy.
**Clinical Pearl / High-Yield Fact**
A key clinical feature of Kaagener's syndrome is the presence of a "corkscrew" or "coiled spring" appearance of the cilia on nasal or bronchial epithelial cells under microscope examination. This distinctive appearance is a strong indicator of impaired ciliary function and can aid in the diagnosis of this condition.
**Correct Answer:**
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