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 III [NOS] or IIIC, assign the appropriate stage and leave pathologic T, N, and M blank. If the only information is FIGO stage IV, leave 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 examined lymph nodes are negative, but the number ordinarily examined is not met, classify as pN0. (FIGO classifies such cases as pNX). (1) **Note 3:** Code only regional nodes and nodes, NOS, in this field. Regional nodes include bilateral and contralateral involvement of named nodes. Distant nodes, including presacral and lateral sacral (laterosacral) nodes, are coded in M (distant metastasis). **Regional lymph nodes** Aortic, NOS Lateral (lumbar) Para-aortic Periaortic Iliac, NOS Common External Internal (hypogastric) Obturator Inguinal Pelvic, NOS RetroperitonealNAACCR Item
NAACCR #890| Pathologic N | Pathologic N Display | Description | Registrar Notes |
|---|---|---|---|
| pX | pNX | Reigonal lymph nodes cannot be assessed | 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 [NOS], IA, IB, IC, II [NOS], IIA, IIB, IIC, IIIA, or IIIB |
| p1 | pN1 | Regional lymph node metastasis | Regional lymph node(s), NOS Lymph nodes, NOS 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 III [NOS], IIIC or IV 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 |