Acquired arteriovenous malformation of lip occurring as an occupational hazard: A case report with review of literature

Abstract

“Vascular malformations” comprise a group of lesions, formed by an anomalous proliferation of angiovascular or lymphovascular structures. Arteriovenous malformations (AVMs) are high-flow malformation, characterized by direct communication between arteries and veins, lacking normal capillary network. AVMs are usually congenital. Acquired AVMs are reported to occur due to trauma or hormonal changes. Acquired AVMs, though rare in oral cavity, when present are persistent and progressive in nature and can represent a lethal benign disease. They are often associated with extensive blood loss, and an incomplete resection frequently leads to regrowth of the lesion often larger than its original size. We present a rare case of an acquired AVM diagnosed on contrast-enhancing computed tomography angiography and histopathology in a 65-year-old professional trumpet blower.

Arteriovenous Malformation of the Lip: A Rare Case Report

“…On the other hand, venous malformations (VMs) are rare but persistent and progressive in nature, and can be a fatal benign disease [1,7]. Hemangiomas are the most common vascular tumors and should be separated from VMs because therapy is different for each patient [8]. Forbes et al distinguished VMs as slow / low flow, and high / fast flow lesions based on angiographic presence of hemodynamic and contrast [8].…”

“…Hemangiomas are the most common vascular tumors and should be separated from VMs because therapy is different for each patient [8]. Forbes et al distinguished VMs as slow / low flow, and high / fast flow lesions based on angiographic presence of hemodynamic and contrast [8]. The first group comprises lymphatic malformations and VMs while the second group involves AVMs [8].…”

“…Forbes et al distinguished VMs as slow / low flow, and high / fast flow lesions based on angiographic presence of hemodynamic and contrast [ 8 ]. The first group comprises lymphatic malformations and VMs while the second group involves AVMs [ 8 ]. AVMs are the most violent type of VMs, which can lead to severe deformation and loss of functionality [ 9 ].…”

“…The AVMs present a therapeutic challenge because of their hemodynamic characteristics and their growth modality [ 1 ]. They have to be treated according to their histopathology, location, and hemodynamic features as shown radiographically with angiography [ 8 - 9 ]. So we recommend to obtain angiography to find out the feeding vessel in this case before surgical interventions.…”

Cerebral Arteriovenous Malformations (cAVMs): What Is New?

“…And an arteriovenous malformation. Steal phenomenon (blood flow through low resistance shunt (low resistance) and stealing blood flow from adjacent brain)[1].…”