Colorectal Cancer pT4a TNM Finding v8

**Semantic type:** Finding

**Definition:** Colorectal cancer with tumor invading 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). (from AJCC 8th Ed.)

**Synonyms:** - Colorectal Carcinoma pT4a TNM Finding v8