Common origin of the second and third palmar digital arteries in an ulnar type superficial palmar arch: a case report

摘要

Τhe superficial palmar arch (SPA) is usually formed by an anastomosis between the ulnar artery (UA) and the radial artery (RA) and gives off three common palmar digital arteries. Many variations of the SPA have been reported in the pertinent literature (ulnar type arch, radial type arch, complete and incomplete arch, etc). Complete SPA is reported to be formed in the 69.2 % of the right hands and 70.5 % of the left hands in the pertinent literature. We report a case of a complete ulnar type SPA, where the first and second palmar digital arteries emerge from a common stem.