Rathke's cleft cyst

Case contributed by A.Prof Frank Gaillard

Presentation

Reason for initial scan uncertain.

Patient Data

Age: 40 years
MRI

A well-defined T1 isointense T2 hyperintense intra and suprasellar cystic mass is identified. On T2 coronal imaging this demonstrates a 7 mm hypointense intracystic nodule which is mildly T1 hyperintense. Normally enhancing pituitary gland is draped over the anterior right aspect of the cyst with mild elevation and deviation of the infundibulum to the right of midline. The apex of the cyst contacts without displacing the optic chiasm and proximal aspects of the pre-chiasmatic optic nerves. There is no extension into the cavernous sinuses and the cavernous carotid flow voids are maintained.

Conclusion: The imaging features are essentially pathognomonic of a Rathke's cleft cyst.

Case Discussion

Fortunately, this patient has not required surgery. Visual fields are normal. The lesion has not changed in 2 years of surveillance.

An intracystic dot or nodule in a pituitary cystic lesion is essentially pathognomonic of a Rathke's cleft cyst

PlayAdd to Share

Case information

rID: 49651
Case created: 29th Nov 2016
Last edited: 1st Dec 2016
Inclusion in quiz mode: Included

Updating… Please wait.
Loadinganimation

Alert accept

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

Alert accept Thank you for updating your details.