Clinical N
This input is used in derivation
Notes
**Note:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis).NAACCR 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 determined or findings inconclusive Physician assigns cNX, no other information available to determine N |
| c0 | cN0 | No regional lymph node metastasis | |
| c1 | cN1 | Metastasis in perirectal lymph node(s) | Unilateral or bilateral: Anorectal Inferior hemorrhoidal Lateral sacral (laterosacral) Perirectal Regional lymph node(s), NOS Lymph nodes, NOS Stated as N1 |
| c2 | cN2 | Metastasis in unilateral internal iliac AND/OR Unilateral inguinal lymph node(s) |
Unilateral: Internal iliac (hypogastric) Obturator Superficial inguinal (femoral) Stated as N2 |
| c3 | cN3 | Metastasis in perirectal and inguinal lymph nodes AND/OR Bilateral internal iliac AND/OR Bilateral inguinal lymph nodes |
Bilateral: Internal iliac (hypogastric) Obturator Superficial inguinal (femoral) Stated as N3 |
| 88 | 88 | Not applicable | Primary site/histology not TNM defined Death certificate only (DCO) case |
| <BLANK> | BLANK | See Registrar Notes | 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 Only Clinical Stage Group documented (no T, N, or M information available) |