ABSTRACT
The association of arteriovenous malformations (AVMs) with aneurysms became apparent soon after cerebral angiography was introduced in 1929 by Egas Moniz (1). This association has raised many intriguing questions regarding the pathophysiology of aneurysms as they relate to AVMs. Moreover, their association has often created management dilemmas that have been resolved in different ways by various cerebrovascular specialists. Studies suggest a possible effect of associated aneurysms on the natural history of AVMs (2-5). In this chapter we present a classification scheme for associated aneurysms, discuss their incidence, review hypotheses on their pathophysiology (5,6), and address the patient management issues they raise.
CLASSIFICATION
