Colloid cyst

Colloid cyst
Classification and external resources
Histopathology of colloid cyst
eMedicine	med/2906 radio/96

A colloid cyst is a cyst containing gelatinous material in the brain. It is almost always found just posterior to the foramen of Monro in the anterior aspect of the third ventricle, originating from the roof of the ventricle. Because of its location, it can cause obstructive hydrocephalus and increased intracranial pressure. These cysts account for approximately 1% of all intracranial tumors.

Symptoms can include headache, vertigo, memory deficits, diplopia, behavioral disturbances and in extreme cases, sudden death. The developmental origin is unclear, though they may be of endodermal origin, which would explain the mucin-producing, ciliated cell type. These cysts can be surgically resected, and opinion is divided about the advisability of this.

External links

• Images of Colloid Cyst from MedPix
• http://brain.hastypastry.net/forums/forumdisplay.php?f=120
• UCLA Neurosurgery: Colloid cysts (with video of removal procedure)
• [http://http://www.facebook.com/groups/5241491877 Colloid cyst group on Facebook where patients can share their experiences (The group needs a Facebook profile to access the content)