arteriovenous malformation of upper lip- a case report with literature review

Arteriovenous malformations (avms) of the head and neck are rare vascular benign anomalies but may become lethal when persistent and progressive. it occurs when a fetal capillary bed fails to fully involute, allowing direct connection between arteries and veins. they can also happen as a result of trauma or a hormonal changes. clinically along with swelling, they are associated with signs of warmth, palpable thrill or bruit. management of the lesion is challenging and follows a multimodal laser therapy approach followed by embolization and surgical resection. complete excision is required as incomplete excision leads to recurrence. a detailed clinical background combined with imaging generally clearly delineates the lesion and allows for a careful therapeutic option. a case report of a post-traumatic/acquired avm on the upper lip is presented in this report which was diagnosed on contrast tomography angiogram and mri in a 7year old female and treated with intra-lesional corticosteroids followed by surgical excision.