Pathologic N
This input is used for staging
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 (pathologic) FIGO IIIB, assign the appropriate stage and leave pathologic T, N, and M blank. If the only information is (pathologic) FIGO stage IVB, leave pathologic T and N blank and see M **Note 2:** Histological examination of a pelvic lymphadenectomy specimen will ordinarily include 6 or more lymph nodes. If the lymph nodes are negative, but the number ordinarily examined is not met, classify as pN0. (1) **Note 3:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis). **Note 4:** FIGO Stage IIIB is assigned based on primary tumor extension and/or regional lymph node involvement. * If it is unknown whether it is based on extension or regional lymph node involvement, assign clinical stage as 3B and leave clinical T, N, and M blank **Note 5:** If either exploratory or definitive surgery is done with no mention of lymph nodes, assume nodes are negative. **Note 6:** If the clinician says "adnexa palpated" but does not mention lymph nodes, assume lymph nodes are not involved. **Regional lymph nodes** Iliac, NOS Common External Internal (hypogastric) Obturator Paracervical Parametrial Pelvic, NOS Sacral, NOS Lateral (laterosacral) Middle (promontorial) (Gerota's node) Presacral Uterosacral Regional lymph nodes, NOS Lymph nodes, NOSNAACCR Item
NAACCR #890| Pathologic N | Pathologic N Display | Description | Registrar Notes |
|---|---|---|---|
| pX | pNX | Regional lymph node(s) cannot be assessed | Only information available is FIGO Stage IVA Pathologic classification criteria met, evaluation done: Physician unable to assess N Surgical resection primary tumor, no regional lymph nodes removed OR Involvement of regional lymph nodes not documented Physician assign pNX, no other information available to determine N |
| p0 | pN0 | No regional lymph node metastasis | Only information available is FIGO Stage I (all subcategories), II (all subcategories), III [NOS], IIIA |
| p1 | pN1 | Regional lymph node metastasis | Stated as N1 |
| c0 | cN0 | Clinically: No regional lymph node metastasis | Use only for TNM defined pTis cases where there is a resection of the primary and the nodes are not evaluated pathologically |
| 88 | 88 | Not applicable | Primary site/histology not TNM defined Death certificate only (DCO) case |
| <BLANK> | BLANK | See Registrar Notes | Only information is FIGO Stage IIIB or IVB Pathologic classification not met No surgical resection of primary tumor AND There isn't a positive biopsy of a structure in the highest T category and highest N category Evidence of metastatic disease (pM1), no other workup |