Pathologic N

This input is used for staging


**Note 1:** Code only regional nodes and nodes, NOS in this fields. Distant nodes are coded in distant metastasis. **Note 2:** Regional lymph nodes are defined as those in the vicinity of the primary tumor. **Note 3:** Regional lymph node involvement is rare. For this schema, if there is no mention of lymph node involvement clinically, assume that lymph nodes are negative. * Assign NX only when there is no available information on the extent of the patient's disease, for example when a lab-only case is abstracted from a biopsy report and no clinical history is available **Regional lymph nodes** Intra-abdominal Paracaval Pelvic Subdiaphragmatic


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 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)