All the following are features of pseudotumor cerebri except-
**Core Concept**
Pseudotumor cerebri, also known as idiopathic intracranial hypertension (IIH), is a condition characterized by elevated intracranial pressure (ICP) without any detectable cause. This condition is often associated with headaches, visual disturbances, and papilledema.
**Why the Correct Answer is Right**
Pseudotumor cerebri typically presents with symptoms such as headache, transient visual obscurations, and pulsatile tinnitus. The key diagnostic feature is the absence of any identifiable cause for the elevated ICP, such as tumors, hydrocephalus, or other space-occupying lesions. The condition is often seen in young women, particularly in the context of obesity and hormonal changes.
**Why Each Wrong Option is Incorrect**
**Option A:** Elevated ICP is a hallmark of pseudotumor cerebri, so this option is incorrect because it describes a characteristic feature of the condition.
**Option B:** Papilledema is a common finding in pseudotumor cerebri, often seen on fundoscopic examination. This option is incorrect because it is a typical feature of the condition.
**Option C:** Headache is a common symptom of pseudotumor cerebri, often described as worsening over time. This option is incorrect because it is a characteristic feature of the condition.
**Clinical Pearl / High-Yield Fact**
A key diagnostic criterion for pseudotumor cerebri is the absence of any identifiable cause for elevated ICP, despite thorough imaging and evaluation. This condition often requires a high index of suspicion and a multidisciplinary approach to diagnosis and management.
**Correct Answer: C. Headache is a common symptom of pseudotumor cerebri, often described as worsening over time.**