Clinical N

This input is used for staging

Notes

**Note:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis). **Regional lymph nodes** Anterior to the ampulla of Vater Inferior to the ampulla of Vater Posterior to the ampulla of Vater Superior to the ampulla of Vater Celiac Hepatic Hepatic artery Infrapyloric (subpyloric) Lateral aortic (lumbar) Node of the foramen of Winslow (epiploic)(omental) Pancreaticoduodenal Peripancreatic (EXCEPT nodes at tail of pancreas) Periportal (portal vein) Proximal mesenteric Retroperitoneal Superior mesenteric

NAACCR Item

NAACCR #950
Clinical N Clinical N Display Description Registrar Notes
cX cNX Regional lymph nodes cannot be assessed Clinical classification criteria met, evaluation done:
Physician unable to assess N
Regional lymph node involvement cannot be determined or findings inconclusive
Physician assigns cNX, no other information available to determine N
c0 cN0 No regional lymph node metastasis No regional lymph node involvement
c1 cN1 Regional lymph node metastasis Regional lymph nodes, NOS
Lymph nodes, NOS

Stated as N1
88 88 Not applicable In situ case but no pTis is defined by TNM
Death certificate only (DCO) case
<BLANK> BLANK See Registrar Notes Clinical classification criteria not met
Clinical classification criteria met, evaluation done:
No information about diagnostic workup
Results not documented in record
Tumor first detected on surgical resection (no clinical workup)
Evidence of metastatic disease [(cM1) or (pM1)], no other workup
Only Clinical Stage Group documented (no T, N, or M information available)