Clinical T

This input is used for staging


**Note:** High grade dysplasia and severe dysplasia of the ampulla vater are generally not reportable in cancer registries. * Assign pTis if your registry collects these tumors


Clinical T Clinical T Display Description Registrar Notes
cX cTX Primary tumor cannot be assessed Clinical classification criteria met, evaluation done:
Physician unable to assess T
Extension cannot be determined
Physician assigns cTX, no other information available to determine T
c0 cT0 No evidence of primary tumor
pIS pTis Carcinoma in situ Intraepithelial, noninvasive

Stated as Tis
c1 cT1 Tumor limited to ampulla of Vater or sphincter of Oddi Invasive tumor confined/limited to ampulla of Vater
Invasive tumor extending to sphincter of Oddi

Confined to ampulla, NOS
Localized, NOS

Stated as T1
c2 cT2 Tumor invades duodenal wall Stated as T2
c3 cT3 Tumor invades pancreas Stated as T3
c4 cT4 Tumor invades peripancreatic soft tissue, or other adjacent organs or structures Common bile duct

Extrahepatic bile duct(s)
(Other than common bile duct and sphincter of Oddi)

Extension to other adjacent organs or tissues:
Blood vessel(s) (major):
Hepatic artery
Portal vein
Hepatic flexure of colon
Lesser omentum
Liver, including porta hepatis
Pericancreatic soft tissue
Stomach, NOS:
Transverse colon

Further contiguous extension

Stated as T4
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
Clinical evaluation of primary tumor not done or unknown if done
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)