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 node metastasis 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
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 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)