Astler-Coller B3 Rectal Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** Rectal carcinoma in which the tumor has adhered to or invaded surrounding organs or structures and there is no lymph node involvement.

**Synonyms:** - Astler-Coller B3 Carcinoma of Rectum - Astler-Coller B3 Carcinoma of the Rectum