患者女，６２岁。三个多月前发现右腋前一个龙眼核大小的肿块，不痛，无明显增大及乳头溢液史。查体：心肺正常。右腋前胸大肌边缘扪及一直径１ｃｍ的肿块，质偏硬，表面光滑，边界清，活动。双侧乳房外观无异常，未扪及肿块。腹部检查无异常发现。于１９９７年１０月２０... Female patient, 62 years old. More than three months ago, a lump in the size of the longan seen before the right eyelid was painless, with no significant increase, and a history of nipple discharge. Physical examination: normal heart and lung. The right anterior border of the pectoralis major muscle and a lump of 1 cm in diameter are hard, smooth, clear border, and active. There were no abnormalities in the appearance of the bilateral breasts, no palpable masses. There was no abnormality in the abdominal examination. In October 20, 1997...