掌长肌异常肌腹病人常常诊断为“囊肿、软组织瘤、腱鞘滑膜瘤、海绵状淋巴管瘤”。往往手术当中才能证实,因此,临床诊断时应该考虑有否变异的可能性。我们在解剖学教学过程中,在1例中年男性尸体标本上见其右掌长肌变异较大,掌长肌的起始端和抵止端均为肌腱型,而中间的肌腹较小, Long palpus muscle abnormalities are often diagnosed as “cyst, soft tissue tumor, tendon sheath synovial tumor, cavernous lymphangioma.” Often during surgery to confirm, therefore, the clinical diagnosis should consider whether the possibility of variation. We anatomical teaching process, in a case of middle-aged male cadaver specimens showed a large variation in their right palmar muscle, palmar longus at the beginning and the end are tendon type, while the smaller in the middle of the belly,