The accessory cephalic vein is a variable vein that passes along the radial border of the forearm to join the cephalic vein[1] distal/inferior to the elbow.

It may arise from a dorsal forearm venous plexus, or from the ulnar/medial side of the dorsal venous network of hand.

A large oblique branch frequently connects the basilic and cephalic veins on the back of the forearm.

[citation needed] This article incorporates text in the public domain from page 662 of the 20th edition of Gray's Anatomy (1918)

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