Stage IIB Colorectal Cancer AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage IIB includes: T4a, N0, M0. T4a: Tumor invades through the visceral peritoneum (including gross perforation of the bowel through tumor and continuous invasion of tumor through areas of inflammation to the surface of the visceral peritoneum). N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 8th ed.)

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