Clinical T

This input is used for staging


**Note 1:** Tumors of the body of the pancreas arise between the left edge of the superior mesenteric-portal vein confluence and the left edge of the aorta. Tumors of the tail of the pancreas arise to the left of the left edge of the aorta. **Note 2:** Islets of Langerhans are distributed throughout the pancreas; an islet tumor is coded according to the subsite of the pancreas in which the tumor arises if the information is available. **Note 3:** Tumor size must be known to assign a value of T1 or T2. You may use a physician’s statement of the T category if this is the only information in the medical record. * If the tumor appears to be in the T1 or T2 categories, but no size or category is specified, assign TX **Note 4:** Assign the appropriate T category (T1, T2) based on the tumor size for the following descriptions Confined to pancreas Localized, NOS


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
Tumor size (TS) unknown for T categories where TS needed to determine T
Physician assigns cTX, no other information available to determine T
c0 cT0 No evidence of primary tumor
pIS pTis Carcinoma in situ In situ, intraepithelial, noninvasive
Pancreatic Intraepithelial Neoplasia III (PanInIII)
PanIN-III classification
c1 cT1 Tumor limited to pancreas, 2 cm or less in greatest dimension Stated as T1
c2 cT2 Tumor limited to pancreas, more than 2 cm in greatest dimension Stated as T2
c3 cT3 Tumor extends beyond pancreas, but
WITHOUT involvement celiac axis or superior mesenteric artery
Extension to peripancreatic tissue, NOS
Fixation to adjacent structures, NOS

Ampulla of Vater
Blood vessel(s):
Hepatic artery
Portal vein
Splenic artery/vein
Superior mesenteric vein
Extrahepatic bile duct(s)
Kidney, NOS
Left adrenal (suprarenal) gland
Left kidney
Left ureter
Mesenteric fat
Retroperitoneal soft tissue (retroperitoneal space)
Splenic flexure of colon

Stated as T3
c4 cT4 Tumor involves celiac axis or superior mesenteric artery Tumor is inseparable from the celiac axis or superior mesenteric artery

Celiac artery
Colon (other than splenic flexure)
Liver (including porta hepatis)
Right adrenal (suprarenal) gland
Right kidney
Right ureter
Superior mesenteric artery

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)