Pathologic 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


Pathologic T Pathologic T Display Description Registrar Notes
pX pTX Primary tumor cannot be assessed Pathologic classification criteria met, evaluation done:
Physician unable to assess T
Surgical resection of primary tumor, extension not stated
Physician assigns pTX, no other information available to determine T
p0 pT0 No evidence of primary tumor
pIS pTis Carcinoma in situ Intraepithelial, noninvasive

Stated as Tis
p1 pT1 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
p2 pT2 Tumor invades duodenal wall Stated as T2
p3 pT3 Tumor invades pancreas Stated as T3
p4 pT4 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 Pathologic classification criteria not met
Pathologic classification criteria met, evaluation done:
Results not documented in patient record
No surgical resection of known primary tumor (not T0)
Resection insufficient for site-specific pathologic assessment
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)