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 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, NOS


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
(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., 210