What symptom is associated with arterial steal phenomena in fast flow AVM lesions?

The symptom associated with arterial steal phenomena in fast-flow arteriovenous malformation (AVM) lesions is pain. In cases of arterial steal, the abnormal communication between arteries and veins can lead to reduced perfusion in the surrounding tissues, resulting in ischemia. This inadequate blood supply can manifest as pain, especially in areas of the body that are more distal from the AVM, where the blood flow is compromised.

Understanding the context of arterial steal is essential. It occurs when the high-flow AVM diverts blood away from normal vascular tissues, causing those tissues to experience a shortage of blood and oxygen. The pain related to this phenomenon can be acute or chronic, depending on the severity and extent of the ischemia caused by the AVM.

Symptoms such as a non-pulsatile mass, weeping, or dependent swelling are not specifically tied to arterial steal phenomena. While these symptoms may occur in various vascular or lymphatic issues, they do not correlate as directly with the clinical presentation associated with arterial steal, which distinctly features pain due to impaired blood flow.