Stage IV Colorectal Cancer AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage IV includes: IVA: (Any T, Any N, M1a); IVB: (Any T, Any N, M1b); IVC: (Any T, Any N, M1c). M1a: Metastasis to one site or organ without peritoneal metastasis. M1b: Metastasis to two or more sites or organs without peritoneal metastasis. M1c: Metastasis to the peritoneal surface alone or with other site or organ metastases. (AJCC 8th ed.)

**Synonyms:** - Stage IV Colorectal (Colon or Rectal) Cancer - Stage IV Colorectal Carcinoma AJCC v8