Department of Orthopedics and Traumatology, Medical School Hospital, Atatürk University.
Arch Iran Med. 2013 Jan;16(1):56-8.
Congenital absence of the abductor pollicis brevis is a very rare condition and is usually associated with other congenital anomalies. Here we report a case of bilateral congenital absence of the abductor pollicis brevis without any other abnormalities, which has not been previously reported. A 24-year-old Caucasian male patient presented to our clinic with flattening in the palmar region, pain and discomfort in writing, and weakness in both hands. USG and MRI revealed bilateral absence of the abductor pollicis brevis muscle. Bilateral congenital absence of the abductor pollicis brevis muscle requires no treatment due to satisfactory hand function, and results in cosmetic problems. Congenital absence of the abductor pollicis brevis muscle should be kept in mind in patients with flattening of the thenar eminences.
先天性拇短展肌缺如非常罕见，通常与其他先天性异常相关。我们在此报告一例双侧先天性拇短展肌缺如病例，无其他异常，此前尚未有报道。一名 24 岁的白人男性患者因手掌平坦、书写时疼痛不适和双手无力来我院就诊。超声和 MRI 显示双侧拇短展肌缺如。双侧先天性拇短展肌缺如由于手功能满意，仅导致美容问题，无需治疗。在手背部平坦的患者中应考虑到先天性拇短展肌缺如。
