ventriculomegaly
Pronunciation: ven-TRIK-yu-lo-MEG-ah-lee
Abnormal enlargement of the cerebral ventricles, which may indicate increased intracranial pressure or brain tissue loss.
Full Definition
Ventriculomegaly refers to the pathological dilatation of the brain's ventricular system, including the lateral, third, and fourth ventricles. This condition can result from various causes including obstruction of cerebrospinal fluid flow, increased CSF production, or cerebral atrophy. While mild ventriculomegaly may be asymptomatic, significant enlargement can indicate hydrocephalus requiring surgical intervention. The condition is diagnosed through neuroimaging studies that measure ventricular size relative to normal anatomical parameters.
Usage
Usage note: Distinguish from hydrocephalus, which specifically refers to increased CSF volume causing ventricular enlargement.
In Context
- "MRI demonstrated progressive ventriculomegaly consistent with communicating hydrocephalus." — Radiology report