Clinical T | TNM Data SEER*RSA

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TNM Home Schema List Gallbladder Clinical T

Clinical T

This input is used for staging

Notes

**Note:** Ignore extension from gallbladder to cystic duct. Ignore extension to extrahepatic bile ducts or ampulla of Vater (T3) when other structures in T4 are involved.

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 invades lamina propria or muscular layer	Note: T1 has subcategories of T1a and T1b. Assign T1 only when there is no information available to assign one of the subcategories Confined to gallbladder, NOS Localized, NOS Stated as T1 [NOS]
c1A	cT1a	Tumor invades lamina propria	Invasive tumor confined to: Lamina propria Mucosa, NOS Submucosa (superficial invasion) Stated as T1a
c1B	cT1b	Tumor invades muscular layer	Muscularis propria Stated as T1b
c2	cT2	Tumor invades perimuscular connective tissue; no extension beyond serosa or into liver	Perimuscular connective tissue Stated as T2
c3	cT3	Tumor perforates the serosa (visceral peritoneum) and/or directly invades the liver and/or one other adjacent organ or structure, such as: Stomach Duodenum Colon Pancreas Omentum Extrahepatic bile ducts	Invasion of/through serosa (visceral peritoneum) Extension to: Abdominal wall Ampulla of Vater Branch(es) of hepatic artery (right or left) but not into main portal vein or hepatic artery Branch(es) of portal vein (right or left) Cystic artery vein Diaphragm Small intestine Extension into: Liver Stated as T3
c4	cT4	Tumor invades main portal vein or hepatic artery or invades two or more extrahepatic organs or structures	Extension to: Common hepatic artery Main portal vein 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)