Pineal cyst

Case contributed by A.Prof Frank Gaillard

Presentation

Incidental finding.

Patient Data

Age: Adult

MRI brain

Modality: MRI

MRI of the brain demonstrates a small (<10mm) cystic lesion in the pineal region. It has high T2 and low T1 signal. On FLAIR it mostly attenuates, and there is no restricted diffusion on DWI. Following administration of contrast there is no solid enhancement. 

Case Discussion

This case demonstrates typical appearances of an Incidental pineal cyst, which are found in up to 5% of all MRI brains, and as such pose a problem to deciding which should be followed up. 

In general large size (>10-12mm) or any atypical features warrant followup to ensure that they do not represent a cystic pineal neoplasm (e.g. pineocytoma). 

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Case Information

rID: 3973
Case created: 6th Jul 2008
Last edited: 17th Oct 2015
Inclusion in quiz mode: Included

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