AVM is an acronym for which of the following?

Arterio-Venous Malformation, often abbreviated as AVM, refers to a type of vascular malformation where there is an abnormal connection between arteries and veins, bypassing the capillary system. This condition leads to various complications due to the altered blood flow dynamics and pressure changes. In an AVM, blood flows directly from the arteries into the veins without the usual oxygen exchange occurring in capillaries, which can result in a range of clinical manifestations, including potential hemorrhage, especially if the malformation is located in the brain or spinal cord. Understanding AVMs is crucial in interventional radiology as they often require therapeutic interventions, such as embolization or surgical resection, to prevent complications. The other options do not accurately describe AVM and therefore are not representative of the condition recognized in medical literature.