患者男,45岁。右腋窝扪及肿物,伴疼痛已4月,近来觉疼痛加重,肿物逐渐增大且高出皮肤.右上肢活动不便而来诊。手术见:包块位于皮下脂肪内,无完整包膜.组织呈暗褐色,质稍硬,无搏动.深部与腋动脉紧靠.仔细分离后摘除肿物。术后愈合尚好。病理报告:肿瘤由血管内皮细胞组成. Male patient, 45 years old. The right armpit masses and tumors, with pain in April, have recently become painful. The masses have gradually increased and rise above the skin. The right upper extremity has been inconvenienced. Surgical see: The mass is in the subcutaneous fat, no complete capsule. The organization was dark brown, slightly harder, no pulsation. The deep and the iliac artery close. Carefully separated after removal of the tumor. Healing is still good. Pathology report: The tumor consists of vascular endothelial cells.