Breast Carcinoma In Situ

**Semantic type:** Neoplastic Process

**Definition:** An intraepithelial carcinoma that arises from the breast without evidence of invasion. It includes ductal carcinoma in situ and lobular carcinoma in situ.

**Synonyms:** - Carcinoma in situ of breast - Unspecified type of carcinoma in situ of breast - Unspecified type of carcinoma in situ of unspecified breast - breast cancer in situ