Clinical N

This input is used for staging


**Note:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis). **Regional lymph nodes** **Primary tumor in either left or right liver** Hilar Common bile duct Cystic duct Hepatic, NOS Hepatic artery Hepatic pedicle Hepatoduodenal ligament Portal vein: Porta hepatis Periportal Inferior phrenic nodes **Primary tumor in left liver (segments 2-4) or lobe of liver not stated** Gastrohepatic **Primary tumor in right liver (segments 5-8) or lobe of liver not stated** Periduodenal Peripancreatic **Primary tumor involving both lobes of liver** Gastrohepatic Periduodenal Peripancreatic


Clinical N Clinical N Display Description Registrar Notes
cX cNX Regional lymph node(s) 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
c1 cN1 Regional lymph node metastasis Regional lymph nodes, NOS
Lymph nodes, NOS

Stated as N1
88 88 Not applicable Primary site/histology not TNM defined
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)