Breast Cancer pTis (DCIS) TNM Finding v8

**Semantic type:** Finding

**Definition:** Breast cancer with a finding of ductal carcinoma in situ. Lobular carcinoma in situ (LCIS) is a benign entity and is removed from TNM staging in the AJCC Cancer Staging Manual, 8th Edition. (from AJCC 8th Ed.)

**Synonyms:** - Breast Carcinoma pTis (DCIS) TNM Finding v8 - Tis (DCIS)