Cholesterol granuloma

Case contributed by Frank Gaillard
Diagnosis almost certain

MRI through the base of skull demonstrates a well circumscribed mass at the left petrous apex. It shows striking high T1 signal and demonstrates no convincing enhancement or fat suppression on fat suppressed post contrast images. 

T2 signal is heterogeneous with a thin rim of signal drop out peripherally.

Case Discussion

Appearances are consistent with a cholesterol granuloma also known in this location as a giant cholesterol cyst.

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.