Lobular carcinoma of the breast, both the in situ and the infiltrating type, is discussed on the basis of three observations. Mammography may be useful, although if often leads to the diagnosis of mastopathy. In cases of in situ lobular carcinoma, ablation of the breast constitutes an adequate therapy. The adequacy of subcutaneous removal of the mammary parenchyma is doubtful. In infiltrating lobular carcinoma, radical mastectomy by Halsted's or Patey's method is the treatment of choice. In view of the frequent bilaterality of the condition, an ample elective biopsy of the identical quadrant of the contralateral breast should be performed in every case.
基于三项观察结果对乳腺小叶癌（包括原位癌和浸润性癌）进行了讨论。乳腺钼靶检查可能有用，尽管它常常导致乳腺病的诊断。对于原位小叶癌病例，乳房切除术是一种充分的治疗方法。乳腺实质皮下切除的充分性值得怀疑。对于浸润性小叶癌，采用霍尔斯特德（Halsted）或佩蒂（Patey）方法的根治性乳房切除术是首选治疗方法。鉴于该病常见双侧性，每例患者均应在对侧乳房相同象限进行充分的选择性活检。
