Clinical T
This input is used for staging
Notes
**Note 1:** Distal bile duct tumors arise between the junction of the cystic duct-bile duct and the ampulla of Vater. The classification includes tumors developing in congenital choledochal cysts and tumors arising in the intrapancreatic portion of the common bile duct. **Note 2:** Involvement within the porta hepatis is coded according to the structures involved: portal vein, common hepatic artery, and common hepatic duct.NAACCR 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 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 confined to the bile duct | Tumor confined to: Lamina propria Mucosa, NOS Submucosa (superficial invasion) Muscularis propria Localized, NOS Stated as T1 |
| c2 | cT2 | Tumor invades beyond the wall of the bile duct | Periductal/fibromuscular connective tissue Stated as T2 |
| c3 | cT3 | Tumor invades: Gallbladder Liver Pancreas Duodenum Other adjacent organs |
Common hepatic duct Unilateral branches of portal vein (right or left) Unilateral branches of hepatic artery (right or left) Stated as T3 |
| c4 | cT4 | Tumor involves the celiac axis or the superior mesenteric artery | Abdominal wall Celiac axis Colon, NOS Transverse including flexure Greater omentum Omentum, NOS Lesser Stomach, distal Stomach, proximal Superior mesenteric artery Main portal vein or its branches bilaterally Common hepatic artery Hepatic artery, NOS Portal vein, NOS 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) |