Cholesterol granuloma

Case contributed by A.Prof Frank Gaillard
Modality: MRI

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.

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Case Information

rID: 4940
Case created: 8th Nov 2008
Last edited: 28th Nov 2016
System: Head & Neck
Inclusion in quiz mode: Included

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