Pontine cavernous haemangioma

Case contributed by Dr Fakhry Mahmoud Ebouda

Presentation

Incidental finding within a routine exam.

Patient Data

Age: 25 years.
Gender: Male
MRI

Cavernoma in the pons. It  shows a typical 'popcorn ball' shape with an associated surrounding rim of signal loss due to haemosiderin. The lesion is heterogenously hyperintense on T1 and T2 weighted sequences.

Case Discussion

MRI is considered the modality of choice in demonstrating a characteristic “popcorn” or "berry" appearance of cavernous malformation.  It is a rim of signal loss due to haemosiderin, which demonstrates prominent blooming on susceptibility weighted sequences. T1 and T2 signal show variation in signal apperaance internally depending on the age of the blood produces and small fluid/ fluid levels  that may be evident. Cavernous malformation is angiographically occult and does not demonstrate arteriovenous shunting. 

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Case information

rID: 34589
Case created: 27th Feb 2015
Last edited: 5th Dec 2015
Inclusion in quiz mode: Included

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