Stage IIB Colorectal Cancer AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** Stage IIB includes: T4a, N0, M0. T4a: Tumor penetrates to the surface of the visceral peritoneum. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 7th ed.)

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