Pathologic T
This input is used for staging
Notes
**Note 1:** Tumors of the head of the pancreas arise to the right of the superior mesenteric-portal vein confluence. **Note 2:** Islets of Langerhans are distributed throughout the pancreas. * An islet tumor is coded 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, NOSNAACCR Item
NAACCR #880| 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 Tumor size (TS) unknown for T categories where TS needed to determine T Physician assigns pTX, no other information available to determine T |
| p0 | pT0 | No evidence of primary tumor | |
| pIS | pTis | Carcinoma in situ | In situ, intraepithelial, noninvasive Pancreatic Intraepithelial Neoplasia III (PanInIII) PanIN-III classification |
| p1 | pT1 | Tumor limited to pancreas, 2 cm or less in greatest dimension | Stated as T1 |
| p2 | pT2 | Tumor limited to pancreas, more than 2 cm in greatest dimension | Stated as T2 |
| p3 | pT3 | Tumor extends beyond pancreas, but WITHOUT involvement celiac axis or superior mesenteric artery |
Extension to peripancreatic tissue, NOS Fixation to adjacent structures, NOS Adjacent stomach Ampulla of Vater Blood vessel(s) (major): Gastroduodenal artery Hepatic artery Pancreaticoduodenal artery Portal vein Superior mesenteric vein Body of stomach Duodenum Extrahepatic bile duct(s) Gallbladder Mesenteric fat Mesentery Mesocolon Omentum Peritoneum Stomach, NOS Transverse colon, including hepatic flexure Stated as T3 |
| p4 | pT4 | Tumor involves celiac axis or superior mesenteric artery | Tumor is inseparable from the celiac axis Tumor is inseparable from the superior mesenteric artery Superior mesenteric artery Superior mesenteric artery plus omentum Superior mesenteric artery plus body of stomach Adrenal (suprarenal) gland Aorta Celiac artery Colon (other than transverse colon including hepatic flexure) Ileum Jejunum Kidney Liver (including porta hepatis) Retroperitoneum Spleen Ureter 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) |