Colloid cyst (large)

Case contributed by A.Prof Frank Gaillard



Patient Data

Age: 65 years
Gender: Male

Hyperdense lesion in the roof of the anterior third ventricle with associated hydrocephalus is consistent with a colloid cyst


Within the third ventricle is a lesion with heterogeneous T2 and high T1 signal consistent with a colloid cyst. It is associated with hydrocephalus and transependymal edema


Case Discussion

The patient went on to have surgery.


MICROSCOPIC DESCRIPTION: The specimen consists predominantly of contents of a colloid cyst. Small segments of cyst wall and lining are included. The lining consists of a layer of ciliated cuboidal epithelial cells. The wall consists of lamellated collagen. There is no evidence of tumor.

FINAL DIAGNOSIS: Colloid cyst of the third ventricle.

PlayAdd to Share

Case information

rID: 34415
Published: 13th Oct 2016
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.