患者男、60岁,工人、左手腕关节桡侧发现肿物6年余,逐渐增大,无外伤史。 检查:左手第1掌骨基底部可见一硬性肿物,约1cm×2cm大小,触及压痛,无活动,局部皮肤色泽,温度正常。左手握力减弱,腕关节活动受限,实验室检查无特殊。 X线检查:左手大多角骨向第1、2掌骨间有一骨性类三角形突起,推压第1掌骨半脱位,瘤体压迫第 The patient was male, 60 years old, and the masses on the radial side of the workers and left wrists were found to be more than 6 years old and gradually increased without history of trauma. Examination: There is a hard mass in the basement of the first metacarpal of the left hand, about 1cm x 2cm in size, touching tenderness, no activity, local skin color, normal temperature. Weak grip on the left hand, limited wrist movements, and no special laboratory tests. X-ray examination: There is a bony triangular protrusion between the first and second metacarpals of the left hand, pushing the first metacarpal subluxation, and the tumor compression.