Congenital arteriovenous fistula

Definition

A congenital vascular disorder characterized byan abnormal connection between an artery and a vein, appearing as varicose veins with port wine discoloration, leading to a bypass of the capillary bed. Signs and symptoms include palpable continuous thrill in the dilated vessels, continuous machinery murmur with systolic accentuation, collapsing arterial pulse, Nicoladoni Branham sign, as well as local gigantism and hot ulcers due to hypoxia, among others.

Also known as congenital arteriovenous shunt — per MONDO

Also identified as

• MESH D001164 per MONDO
• NCIT C35377 per MONDO
• Orphanet 98731 per MONDO
• SCTID 234148007 per MONDO
• UMLS C0332965 per MONDO

Affected Organs