Case courtesy of Dr Hani Salam, Radiopaedia.org.
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.