Pathologic N

This input is used for staging


**Note 1:** When both the Federation Internationale de Gynecologie et d'Obstetrique (FIGO) stage and extension information on the primary tumor are available, use the extension information to assign the T in preference to a statement of FIGO stage - see Registrar notes. * If the only information is (pathologic) FIGO III [NOS], IIIC [NOS], IIIC1, or IIIC2 assign the appropriate stage and leave pathologic T, N, and M blank. If the only information is FIGO stage IVB, 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 involvement of named nodes. **Note 5:** If the clinician says "adnexa palpated" but does not mention lymph nodes, assume lymph nodes are not involved. **Regional lymph nodes** Aortic, NOS Lateral (lumbar) Para-aortic Periaortic Iliac, NOS Common External Internal (hypogastric) Obturator Paracervical Parametrial Pelvic, NOS Sacral, NOS Lateral (laterosacral) Middle (promontorial) (Gerota's node) Presacral Uterosacral Pelvic lymph nodes, NOS FIGO Stage IIIC (pelvic or para-aortic lymph nodes) FIGO Stage IIIC1 (pelvic lymph nodes) FIGO Stage IIIC2 (para-aortic lymph nodes WITH or WITHOUT pelvic lymph nodes)


Pathologic N Pathologic N Display Description Registrar Notes
pX pNX Regional lymph nodes 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 [NOS], IA, IB, II, IIIA, IIIB
p1 pN1 Statement of FIGO IIIC only

Metastasis to pelvic lymph nodes (IIIC1)
Regional lymph nodes, NOS
Lymph nodes, NOS

Stated as N1
p2 pN2 Metastasis to para-aortic lymph nodes with or without metastasis to pelvic lymph nodes (IIIC2)^ Stated as N2
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 [NOS], IIIC1, IIIC2, 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
(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., 215 ^ Definition from the [Updated pages]( from TNM Classification of Malignant Tumours