Abstract:ObjectiveTo investigate the value of spiral CT in the diagnosis and clinical evaluation of pancreatic cancer.MethodsTwenty-two patients with pancreatic cancer confirmed by operation and pathology from November 2015 to October 2019 were selected and retrospectively studied on CT features of tumor,peripancreatic vessels,nerves,peripancreatic fat space,adjacent organs and metastasis.ResultsPancreatic masses were located at the head of pancreas in 13 cases,at the neck of pancreas in 2 cases,at the body of pancreas in 4 cases,at the body and tail of pancreas in 2 cases and at the tail of pancreas in 1 case.There were 12 cases with dilatation of pancreatic duct,6 cases with dilatation of common bile duct and intrahepatic bile duct,2 cases with celiac artery invasion,1 case with common hepatic artery invasion,3 cases with superior mesenteric artery invasion,1 case with superior mesenteric vein invasion,3 cases with portal vein invasion,1 case with splenic vein invasion,6 cases with peripancreatic fat space invasion and 4 cases with duodenal invasion.There were 6 cases with hepatic metastasis,3 cases with peripancreatic lymph node metastasis,1 case with hepatic hilar lymph node metastasis,4 cases with retroperitoneal lymph node metastasis,5 cases with peritoneal mesenteric metastasis,2 cases with omental metastasis and 4 cases with abdominal dropsy.ConclusionSpiral CT plays an important role in the diagnosis of pancreatic cancer and peripancreatic tissue invasion and in judging whether the patients can be operated for pancreatic cancer.