Cerebral proliferative angiopathy with tumor-like hemorrhage: A case report and literature review.

Cerebral proliferative angiopathy (CPA) is defined as a rare vascular disorder, characterized by diffuse arterial proliferation and distinctive angiogenetic features. Complication with hemorrhage is exceedingly rare, but once the bleeding occurs, the chance of re-bleeding is increased. Here we report a case of a patient with CPA complicated with bleeding and re-bleeding, and imaging findings mimicking a brain tumor, which has not been reported in the literature so far.