Niharika Kadiyala1, Arunan Murali2
BACKGROUND
Persistent Median Artery (PMA) is an accessory artery in the forearm and wrist. It is a persistent embryological remnant that usually regresses by eighth week of gestation. The persistent medial artery accompanies the medial nerve as it courses through the forearm and carpal tunnel. The persistent medial artery is contained within the epineurium of the median nerve. The artery can cause impingement upon the median nerve in the carpal tunnel and cause Carpal Tunnel Syndrome (CTS).
