Stage | Description |
Primary tumor TX T0 T1 T2 T3 T4 |
Not classifiable. No evidence of primary tumor. Tumor invades lamina propria or submucosa and tumor size ≤ 1 cm. Tumor invades muscularis propria or tumor size > 1 cm. Tumor invades muscularis propria and subserosa, no invasion of serosa. Tumor invades visceral peritoneum (serosa) or invades other organs. |
Lymph nodes NX N0 N1 N2
|
Regional lymph node involvement cannot be assessed. No regional lymph node involvement. Regional lymph node involvement <12 nodes. Large mesenteric tumor (>2 cm) and/or ≥ 12 nodal deposits (especially those encasing the superior mesenteric vessels). |
Metastasis M0 M1 M1a M1b M1c |
No distant metastasis. Distant metastasis. Metastasis confined to liver. Metastasis in at least one extrahepatic site. Hepatic and extrahepatic metastases. |
Stage I II III
IV |
T1, N0, M0. T2/T3, N0, M0. T4, N0, M0. Any T, N1/N2, M0. Any T, any N, M1. |
Tm | Multiple tumors. |