Clinical N
This input is used in derivation
Notes
**Note 1:** When both the Federation Internationale de Gynecologie et d'Obstetrique (FIGO) stage and regional lymph node detail are available, use the regional lymph node detail in preference to a statement of FIGO stage - see Registrar notes. * If the only information is FIGO III [NOS], IIIA, IIIB, IIIC, or IVA, assign the appropriate stage and leave clinical T, N, and M blank. If the only information is FIGO stage IVB, leave T and N blank and see M. **Note 2:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis). **Note 3:** Assign N1 [NOS] if regional lymph nodes are involved but the number of nodes involved is unknown. **Note 4:** Assign the appropriate N category based on the number of positive nodes: Deep inguinal, NOS Femoral Inguinal NOS Inguinofemoral (groin) Node of Cloquet or Rosenmuller (highest deep inguinal) Superficial inguinal (femoral) Regional lymph node(s), NOS Lymph nodes, NOSNAACCR Item
NAACCR #950| Clinical N | Clinical N Display | Description | Registrar Notes |
|---|---|---|---|
| cX | cNX | Regional lymph nodes cannot be assessed | Clinical classification criteria met, evaluation done: Physician unable to assess N Regional lymph node involvement cannot be determine or findings inconclusive Physician assigns cNX, no other information available to determine N |
| c0 | cN0 | No regional lymph node metastasis | Only information available is FIGO Stage I [NOS], IA, IB, II |
| c1 | cN1 | Regional lymph node metastasis with the following features | Note: N1 has subcategories of N1a and N1b. Assign N1 only when there is no information available to assign one of the subcategories 1 or 2 regional lymph node(s) positive (or number positive unknown) and size of metastasis not given Stated as N1 [NOS] |
| c1A | cN1a | 1-2 lymph node metastasis each less than 5 mm | Stated as N1a |
| c1B | cN1b | 1 lymph node metastasis 5 mm or greater | Stated as N1b |
| c2 | cN2 | Regional lymph node metastasis with the following features | Note: N2 has subcategories of N2a and N2b. Assign N2 only when there is no information available to assign one of the subcategories 3 or more regional lymph node(s) positive and size of metastases not given Stated as N2 [NOS] |
| c2A | cN2a | 3 or more lymph node metastases each less than 5 mm | 3 or more regional lymph nodes positive and size of metastasis in each node less than 5 mm Stated as N2a |
| c2B | cN2b | 2 or more lymph node metastases 5 mm or greater | At least 2 lymph node metastases equal to or greater than 5 mm Stated as N2b |
| c2C | cN2c | Lymph node metastases with extracapsular spread | Regional lymph node(s) with extracapsular spread Stated as N2c |
| c3 | cN3 | Fixed or ulcerated regional lymph node metastasis | Fixed or ulcerated regional lymph nodes Stated as N3 |
| 88 | 88 | Not applicable | Primary site/histology not TNM defined |
| <BLANK> | BLANK | See Registrar Notes | Only information available is FIGO Stage III [NOS], IIIA, IIIB, IIIC, IVA, or IVB Clinical classification criteria not met Clinical classification criteria met, evaluation done: No information about diagnostic workup Results not documented in record Tumor first detected on surgical resection (no clinical workup) Evidence of metastatic disease [(cM1) or (pM1)], no other workup |