stage I

Definition of stage I pancreatic cancer
National Cancer Institute

stage I pancreatic cancer

(... PAN-kree-A-tik KAN-ser)
Cancer is found in the pancreas only. Stage I is divided into stages IA and IB, depending on the size of the tumor. In stage IA, the tumor is 2 centimeters or smaller. In stage IB, the tumor is larger than 2 centimeters but not larger than 4 centimeters.

Source: NCI Dictionary of Cancer Terms