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What Is It?

Case courtesy of Dr Hani Salam,

This is an example of a cavernous venous malformation.

Histologically cavernous malformations are composed of a “mulberry-like” cluster of hyalinized dilated thin-walled capillaries, with surrounding hemosiderin 3. These vessels are thrombosed to varying degrees. Unlike AVMs, there is no normal brain between the interstices of these lesions. 

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