Incomplete superficial palmar arch

Superficial palmar arch is an arterial arcade and a dominant vascular structure of the palm. It is defined as the anastomoses between the superficial branch of the ulnar artery and superficial palmar branch of the radial artery. Generally arteria radialis indicis and arteria princeps pollicis are the branches of deep palmar arch. The authors report a variation of superficial palmar arch alone formed by superficial branch of ulnar artery and giving origin to arteria radialis indicis and arteria princeps pollicis. In hand surgeries like vascular graft applications arterial repairs, free and/or pedicled flaps, clinicians should be aware of these variations.