Pathologic N

This input is used for staging


**Note 1:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis). **Note 2:** Regional lymph nodes for the bladder are the nodes of the true pelvis, which essentially are the pelvic nodes below the bifurcation of the common iliac arteries, but include the lymph nodes along the common iliac artery too. Laterality does not affect the N classification. **Regional lymph nodes** N1 (single) or N2 (multiple): Lymph nodes in the true pelvis Perivesical Iliac Internal (hypogastric) Obturator External Iliac, NOS Sacral (lateral, presacral, sacral promontory (Gerota's), or NOS) Pelvic, NOS Regional lymph nodes, NOS Lymph nodes, NOS N3:Single or multiple Common iliac lymph node(s)


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 Metastasis in a single lymph node in the true
External iliac
Not stated if single or multiple

Stated as N1
p2 pN2 Metastasis in multiple lymph nodes in the true pelvis:
External iliac
MULTIPLE regional lymph nodes

Stated as N2
p3 pN3 Metastasis in a common iliac lymph node(s) Common iliac lymph node(s)

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
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)