Cardiovascular Radiology

Imaging Findings

This is a case of suprasellar lipoma mimiking a basilar tip aneurysum. T1WI sagittal, T2WI axial, and MR angio show the lipoma as a aneurysum since fat has a short relaxation giving a signal on the TOF study. A CT done shows fat density with calcification.

Brief Discussion

Although MRI has beaten CT in almost all spheres of neuro imaging, perhaps this one case does highlight the fact that CT can still be used as an adjunct to MR imaging when any doubts crop up. Detection of fat and blood can rarely pose problems on MRI, which could be solved by performing a CT.

Contribution

Dr. Ashok Raghavan, Manipal Hospital, Bangalore