A Rare Case of Facial Arteriovenous Malformation in a 3-Year-Old Female.

Arteriovenous malformation (AVM) is a rare congenital vascular anomaly involving abnormal artery-vein connections that bypass the capillary system. AVMs are particularly uncommon in young children. A 3-year-old girl presented with a painless, progressively enlarging left cheek swelling since birth. Clinical examination showed left facial asymmetry with a nontender, pulsatile mass in the left parotid region without skin changes or visible collateral vessels. Computed tomography angiography revealed an enhancing mass in the left parotid region with feeding and draining vessels. The patient was referred to vascular surgery for further management. AVM's rarity in pediatrics highlights the need for further research in genetic and developmental factors, aiming to improve early detection, management, and outcomes for affected children.