1病例报告患者女,55岁。因“发现左侧乳房肿物2个月”于2011-07-01入本院。患者于2个月前发现左侧乳房有一肿物,2个月来肿物逐渐增大;无任何不适症状,未接受治疗。患者已绝经1年。既往无创伤及放疗病史。查体:双侧乳房发育正常,左侧乳房外上象限距乳头约3cm可触及2.0cm×1.5cm大小肿 A case report patient female, 55 years old. Because “found the left breast tumor 2 months ” in 2011-07-01 into our hospital. The patient found a tumor in the left breast 2 months earlier and a gradually enlarged mass in 2 months without any symptoms and was not treated. The patient has been menopausal for 1 year. No past history of trauma and radiotherapy. Physical examination: bilateral breast development is normal, the left upper outer quadrant of the breast about 3cm away from the nipple can reach 2.0cm × 1.5cm size swelling