Collaborative Stage Data Set - Revised 10/26/2010 FINAL
Rectum
Lymph Nodes Pathologic Evaluation AJCC 7 Table Also Used When CS Lymph Nodes Eval is Not Coded
- Note: This table is used when CS Lymph Nodes is 100-300 and CS Regional Nodes Eval is 2, 3, 6, 8, or not coded. The N category is determined based on the number of positive regional nodes in Regional Nodes Positive.
| Regional Nodes Positive | N Category |
| 00-00 | N1NOS |
| 01-01 | N1a |
| 02-03 | N1b |
| 04-06 | N2a |
| 07-90 | N2b |
| 95-99 | N1NOS |