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Cavernoma - middle cerebellar peduncle

Case contributed by Ammar Haouimi
Diagnosis almost certain

Presentation

Dizziness.

Patient Data

Age: 35 years

There is a small well-defined lesion of the right middle cerebellar peduncle (8 x 7 x 5 mm) protruding into the 4th ventricle. It displays a heterogeneous signal on both T1/T2 with areas of high signal and peripheral rim of low signal (hemosiderin) with prominent blooming on gradient echo sequence. No surrounding edema or enhancement on postcontrast sequences.

 

Case Discussion

MRI appearances of a cerebral cavernous venous malformation (cavernoma) type II according to Zabramski classification.

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