腺泡状软组织肉瘤少见,好发于四肢深部肌肉,易发生转移.临床表现无特异性,术前大多误诊.本文报告1例,最先发生于前臂肌肉内,5年后发现颅骨及全身骨组织多发病变,病理证实为腺泡状软组织肉瘤.现报告如下. Alveolar soft tissue sarcoma is rare, occurs in deep muscles of the extremities, prone to metastasis. The clinical manifestations are non-specific, and most of the preoperative diagnosis is misdiagnosed. This case reports 1 case, which first occurred in the muscles of the forearm, and the skull and whole body bones were found 5 years later. Tissue multiple lesions, pathologically confirmed alveolar soft tissue sarcoma. The report is as follows.