Small Intestine Cancer pT4 TNM Finding v7

**Semantic type:** Finding

**Definition:** Small intestine cancer with tumor perforating the visceral peritoneum or directly invading other organs or structures (including other loops of small intestine, mesentery, or retroperitoneum more than 2 cm, and abdominal wall by way of serosa; for duodenum only, invasion of pancreas or bile duct). (from AJCC 7th Ed.)