Rathke cleft cyst

Case contributed by Ryan Thibodeau
Diagnosis almost certain

Presentation

Low testosterone. Evaluate for pituitary pathology.

Patient Data

Age: 40 years
Gender: Male
mri

There is a well-circumscribed nonenhancing CSF intensity cyst within the ventral aspect of the anterior pituitary gland which measures 7 x 6 x 6 mm (TRV, AP, CC). The remainder of the pituitary gland displays normal homogeneous enhancement and the pituitary infundibulum is midline. The posterior pituitary bright spot is present, and in normal location.

Case Discussion

Given the imaging appearance (CSF intensity in ventral pituitary), this lesion likely represents a Rathke cleft cyst. The patient was also incidentally found to have right cerebellar ectopia.

The patient has been following up with endocrinology as an outpatient. Surgery is planned due to the symptomatic nature of the lesion.

Co-authors:
Alannah McCann
Ananth Narayan, MD

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

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

 Thank you for updating your details.