Pathologic N

This input is used for staging

**Regional lymph nodes** Cervical, NOS Submandibular (submaxillary) Parotid, NOS Infra-auricular Preauricular

NAACCR #890

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 Involvement of regional lymph nodes not documented Physician assigns pNX, no other information available to determine N
p0	pN0	No regional lymph node involvement
p1	pN1	Regional lymph node involvement (preauricular, cervical)	Regional lymph nodes, NOS Lymph nodes, NOS Stated as N1
p2	pN2	Distant lymph node involvement	Distant lymph node involvement 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	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)