which of the following is not a sign of pitutary apoplexy ?
**Core Concept**
Pituitary apoplexy is a medical emergency characterized by sudden hemorrhage or infarction of the pituitary gland, often presenting with symptoms such as headache, visual disturbances, and altered mental status. It is a life-threatening condition that requires prompt recognition and treatment.
**Why the Correct Answer is Right**
Pituitary apoplexy typically presents with signs and symptoms such as sudden severe headache, visual disturbances (bitemporal hemianopia), altered mental status, and endocrine dysfunction (e.g., hypopituitarism). The correct answer choice is likely to be a symptom or sign that is not typically associated with pituitary apoplexy.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because sudden severe headache is a common presenting symptom of pituitary apoplexy. The headache is often described as a sudden, severe, and explosive headache that can be accompanied by nausea and vomiting.
**Option B:** This option is incorrect because visual disturbances, particularly bitemporal hemianopia, are a common feature of pituitary apoplexy. The visual disturbances are due to compression of the optic chiasm by the enlarged pituitary gland.
**Option C:** This option is incorrect because altered mental status is a common feature of pituitary apoplexy. The altered mental status can range from mild confusion to coma and is due to the sudden increase in intracranial pressure and the compression of the brainstem.
**Clinical Pearl / High-Yield Fact**
A key clinical feature of pituitary apoplexy is the sudden onset of symptoms, which can occur in patients with or without a history of pituitary disease. The diagnosis is often made based on clinical presentation and imaging studies, such as MRI or CT scans.
**Correct Answer: D**