Collaborative Stage for TNM 7 - Revised 10/11/2009 [ Schema ]
Retroperitoneum
CS Lymph Nodes
- Note 1: Regional lymph nodes are defined as those in the vicinity of the primary tumor.
- Note 2: Regional lymph node involvement is rare. For this schema, if there is no mention of lymph node involvement clinically, assume that lymph nodes are negative (code 000). Use code 999 (Unknown) only when there is no available information on the extent of the patient's disease, for example, when a lab-only case is abstracted from a biopsy report and no clinical history is available.
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | None; no regional lymph node involvement | N0 | N0 | NONE | NONE |
| 100 | Regional lymph nodes:
Intra-abdominal
Paracaval
Pelvic
Subdiaphragmatic
Regional lymph nodes, NOS
Stated as N1 | N1 | N1 | RN | RN |
| 800 | Lymph nodes, NOS | N1 | N1 | RN | RN |
| 999 | Unknown (see Note 2) | NX | NX | U | U |