Pathologic N

This input is used in derivation

Notes

**Note:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis). **Regional lymph nodes:** Inguinal Deep inguinal, NOS Node of Cloquet or Rosenmuller (highest deep inguinal) Superficial inguinal (femoral) Inguinal node, NOS (unknown if superficial or deep) Pelvic lymph nodes, NOS: External iliac Internal iliac (hypogastric) Obturator

NAACCR Item

NAACCR #890

Pathologic N	Pathologic N Display	Description	Registrar Notes
pX	pNX	Regional lymph node(s) cannot be assessed	Pathologic classification criteria met, evaluation done: Physician unable to assess N Surgical resection primary tumor, no regional lymph nodes removed Involvement of regional lymph nodes not documented Physician assigns pNX, no other information available to determine N
p0	pN0	No regional lymph node metastasis	No regional lymph node involvement
p1	pN1	Metastasis in a single inguinal lymph node	SINGLE regional lymph nodes, NOS Not stated if single or multiple AND not stated if inguinal or pelvic Regional lymph node(s), NOS Lymph nodes, NOS Stated as N1
p2	pN2	Metastasis in multiple OR Bilateral inguinal lymph nodes	Inguinal lymph nodes, NOS Stated as N2
p3	pN3	Metastasis in pelvic lymph node(s), unilateral or bilateral OR Extranodal extension of regional lymph node metastasis	Pelvic lymph node(s), NOS Stated as N3
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
<BLANK>	BLANK	See Registrar Notes	Pathologic classification criteria 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 Only Pathologic Stage Group documented (no T, N, or M information available)