Özet:

Purpose: Flexor carpi ulnaris muscle FCUM is one of the muscles of the superficial flexor group which is located most medially in the forearm. This study aimed to emphasize the importance of variations of the FCUM in clinical diagnosis and surgical procedures.Methods: While performing routine gross anatomy dissection of an adult male formaldehyde fixed cadaver in laboratory of Anatomy Department, we observed a unilateral variation of FCUM in the left upper extremity.Results: FCUM was originated with one common tendon and separated into two bellies at the distal half of forearm, and extended with two tendons. The connecting tendons were inserted to pisiform, hamate bones, and proximal of the fifth metacarpal bones.Conclusion: The detection of FCUM variations is significantly important not only in the treatment of pressure related symptoms which they cause but also in reconstructive and orthopedic surgery

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