Which of the following doesn’t constitute the triad of Paterson – Brown – Kelly syndrome?
**Core Concept**
The Paterson-Brown-Kelly syndrome, also known as rhino-orbital-cerebral mucormycosis, is a rare and aggressive fungal infection that primarily affects immunocompromised individuals. It involves the nasal cavity, orbit, and brain, often resulting in severe morbidity and mortality.
**Why the Correct Answer is Right**
The classic triad of Paterson-Brown-Kelly syndrome includes:
* **Facial pain or swelling**, which is caused by the invasion of fungal hyphae into the nasal cavity and surrounding tissues.
* **Proptosis**, resulting from the involvement of the orbital tissues and the subsequent increase in orbital pressure.
* **Ptosis**, which is due to the invasion of the fungal hyphae into the extraocular muscles and the subsequent paralysis.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because **fever** is a common symptom of various infections, including mucormycosis, but it does not constitute a part of the classic triad.
* **Option B:** This option is incorrect because **seizures** can be a complication of mucormycosis, particularly when the infection involves the brain, but it is not a component of the classic triad.
* **Option C:** This option is incorrect because **visual loss** can result from the proptosis and orbital involvement, but it is not a distinct component of the classic triad.
**Clinical Pearl / High-Yield Fact**
The Paterson-Brown-Kelly syndrome is often associated with diabetes mellitus, chronic corticosteroid use, and other immunocompromised states. Early recognition and treatment are essential to prevent severe complications and improve outcomes.
**Correct Answer:** A.