text: The diagnostic study of choice for<unk>  cancer is the dynamic spiral CT scan with contrast media (oral and IV) enhancement. Findings on CT scan that may be suggestive of<unk>  cancer include morphological changes of the gland, destruction of the peripancreatic fat and loss of the sharp margins with surrounding structures, involvement of the regional lymph nodes and adjacent vasculature,<unk>  ductal dilatation,<unk>  atrophy and obstruction of the common bile duct . CT scan is also used for the staging of<unk>  cancer.
option_0: Pancreatic cancer diagnostic study of choice
option_1: Chronic pancreatitis diagnostic study of choice
option_2: Autoimmune pancreatitis diagnostic study of choice
option_3: Zollinger-Ellison syndrome diagnostic study of choice
option_4: Stomach cancer Diagnostic study of choice
option_5: Pancreatic cancer differential diagnosis
option_6: Gallstone disease diagnostic study of choice
option_7: Liver mass diagnostic study of choice