Scalp arteriovenous malformations (AVMs) are rare extracranial vascular anomalies that typically present with enlarging, pulsatile masses, often accompanied by headaches or other symptoms like tinnitus. These malformations result from an abnormal connection between arterial feeders and draining veins without an intermediary capillary bed, leading to increased venous dilation and possible cosmetic or functional complications.

The management of scalp AVMs can vary, with options including endovascular embolization or surgical excision. While embolization is effective in small-sized AVMs, as in the present case, larger or more complex malformations often require surgical intervention. Recent literature suggests the necessity of cerebral angiography to precisely map the vascular architecture and guide treatment.