Clinical T
This input is used for staging
Notes
**Note 1:** Assign 88 for in situ cases (behavior code /2). TNM does not include an in situ category for NET ampulla tumors. **Note 2:** 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 3:** Assign the appropriate T category (T1, T2) based on the tumor size for the following descriptions Invasive tumor confined/limited to ampulla of Vater or extending to sphincter of Oddi Duodenal wall Confined to ampulla, NOS Localized, NOSNAACCR Item
NAACCR #940| 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 | |
| c1 | cT1 | Tumor invades lamina propria or submucosa and is no greater than 1 cm in size | Stated as T1 |
| c2 | cT2 | Tumor invades muscularis propria or is greater than 1 cm in size | Stated as T2 |
| c3 | cT3 | Jejunal or ileal tumor invades subserosa Ampullary or duodenal tumor invades pancreas or retroperitoneum |
Peripancreatic soft tissues Stated as T3 |
| c4 | cT4 | Tumor perforates visceral peritoneum (serosa) or invades other organs or adjacent structures | Common bile duct Extrahepatic bile ducts other than common bile duct or sphincter of Oddi Extension to other adjacent organs or tissues: Blood vessels (major): Hepatic artery Portal vein Gallbladder Hepatic flexure Lesser omentum Liver including porta hepatis Stomach Transverse colon Further contiguous extension Stated as T4 |
| 88 | 88 | Not applicable | In situ case but no pTis is defined by TNM 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) |