Pathologic N

This input is used for staging


**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 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. Distant nodes are coded in M (distant metastasis). **Note 4:** Regional nodes include bilateral and contralateral named nodes. **Regional lymph nodes** Aortic Lateral (lumbar) Para-aortic Periaortic Iliac Common iliac External iliac Internal iliac (hypogastric): Obturator Inguinal Intra-abdominal Pelvic Subdiaphragmatic Retroperitoneal, NOS


Pathologic N Pathologic N Display Description Registrar Notes
pX pNX Regional 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, IIIB
p1 pN1 Regional lymph node metastasis Regional lymph nodes, 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
In situ case but no pTis is defined by TNM
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
(1) International Union Against Cancer (UICC) *TNM Classification of Malignant Tumors,* 7th ed., Sobin, LH, Gospodarowicz, M, Wittekind, CH, eds. New York: Wiley, 2009, pg., 225