In cerebral arteriovenous malformations (AVMs), a pseudo-aneurysm represents pitfalls in the interpretation of pseudo-aneurysms in angiographic AVM architecture. .. The incidence of multiple meningiomas (MMs) without the stigmata of. Brain arteriovenous malformations (AVMs) are abnormal vascular 1X8 (S.G., M.M.S., D.C.A.); Department of Radiology, Ramathibodi Hospital, Mahidol. I have MAX-MMS and three AVMs. The problem is that sometimes one AVM's sound isn't good (it's crackin') while playin' MP3 or DVD.