Classification of special breast cancer and the principles in diagnosis and treatment        JIANG Jun. Breast Disease Center, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
Abstract    From the aspect of pathology and the viewpoint of clinicians, the definitions of “special breast cancer” differ. This paper briefly introduced the “WHO classification of tumors of the breast” in “Histological and genetic classification of tumors” released by WHO in 2012, and classified the special breast cancers based on clinical experience. The main conclusions were listed as follows: it is necessary to summarize the clinical classification of special types of breast cancer; the treatment for the unusual conditions should be individualized. The molecular subtyping gives a challenge to the histological classification of "non-special type of invasive breast cancer”. All in all, the evidence-based research for surgical treatment against “special breast cancer” is insufficient, which requires more extensive studies.