Cerebellar developmental venous anomaly

Case contributed by Dr Bruno Di Muzio

Presentation

First episode of seizure.

Patient Data

Age: 26-year-old
Gender: Female

CT Brain

Modality: CT

There is a tiny area of increased density in the right cerebellar hemisphere and following contrast there is a leash of vessels surrounding it, extending to the cortical surface. The grey/white matter interface is preserved. There is a probable developmental venous anomaly in the right cerebellar hemisphere. A tiny area of increased density in the right cerebellar hemisphere may present an associated cavernoma. MRI correlation is suggested.

MRI Brain

Modality: MRI

There are a bunch of small veins in the right cerebellar hemisphere draining predominantly towards a central vein that runs to the confluence of sinuses. There is also drainage through a thinner vein that runs anteriorly to tentorial veins reaching the right transverse sinus. No cavernous malformation are identified.

Conclusion: Developmental venous anomaly in the right cerebellar hemisphere. No signs of associated cavernous malformations.

Case Discussion

This case shows the typical appearance of a developmental venous anomaly (DVA) with a bunch of venous vessels in a "Medusa head". They are commonly located at the angle of ventricles, especially near frontal horn of the lateral ventricles. 

There is no cavernous malformation associated, although it can coexist in ~20% of the DVAs. 

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Case Information

rID: 41402
Case created: 30th Nov 2015
Last edited: 2nd Dec 2015
Tag: rmh
Inclusion in quiz mode: Included

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