Colloid cyst (large)

Case contributed by A.Prof Frank Gaillard

Presentation

Headaches.

Patient Data

Age: 65 years
Gender: Male
Modality: CT

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

Modality: MRI

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 oedema

 

Case Discussion

The patient went on to have surgery.

Histology

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 tumour.

FINAL DIAGNOSIS: Colloid cyst of the third ventricle.

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Case Information

rID: 34415
Case created: 19th Feb 2015
Last edited: 13th Oct 2016
Inclusion in quiz mode: Included

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