Site-Specific Factor 5
Molecular (MOL) Studies of Regional Lymph Nodes
Notes
**Note 1:** Isolated tumor cells (ITCs) are defined as single tumor cells or small clusters not greater than 0.2 mm, usually detected by immunohistochemistry (IHC) (see **Site-Specific Factor 4), Hematoxylin and Eosin (H and E)** (see pN0(i+)), or molecular (MOL) methods (Reverse Transcription Polymerase Chain Reaction, RT-PCR). * ITCs do not usually show evidence of malignant activity (e.g., proliferation or stromal reaction) **Note 2:** Use codes 000-002 only to report results of MOL studies (RT-PCR) when Regional Lymph nodes are negative (N0). * If there are positive nodes, code 987 in this field **Note 3:** If it is not stated whether molecular tests are done, assume they are not done.Default
987NAACCR Item
NAACCR #2920Metadata
None| Code | Description |
|---|---|
| 000 | Regional lymph nodes negative on routine hematoxylin and eosin (H and E), no RT-PCR molecular (MOL) studies done OR unknown if RT-PCR studies done Nodes clinically negative, not examined pathologically |
| 001 | Regional lymph nodes negative on routine H and E, RT-PCR MOL studies done, negative for tumor |
| 002 | Regional lymph nodes negative on routine H and E, RT-PCR MOL studies done, positive for tumor |
| 987 | Not applicable: Regional Lymph Nodes not assigned pN0 |
| 988 | Not applicable: Information not collected for this case |