Acute cerebellar venous edema associated with unruptured cerebral arteriovenous malformation

Abstract

Brain arteriovenous malformations (AVMs) are abnormal rterial–venous shunts within the brain. They are presumed to be ongenital in nature and may evolve with an unclear pathophysological mechanism, such as growing, remodeling or regression. linically, they usually present with hemorrhage, seizure, or schemia by steal phenomenon [1]. In rare cases, the brain edema urrounds the unruptured brain AVM, which results from venous rainage stagnation and accordingly, venous edema is presented 2–4]. Furthermore, brain edema occurring distantly from an nruptured cerebral AVM is extremely rare, and it can cause a ife-threatening increased intracranial pressure (IICP) if the venous dema develops in the posterior fossa. Here we report a patient resenting with cerebral AVM associated with acute worsening erebellar venous edema that was treated successfully by partial ndovascular embolization and then surgical resection.