The patients in experimental group underwent minor incision were made in parasternum.And upper margin of areola.Blunt dissection of the subcutaneous planes of neck and chest were administered.

• 实验组患者于乳晕上缘、胸骨旁作小切口导入腹腔镜及配套设施，建立人为操作空间进行内镜操作切除肿物；