Pancreatic Carcinoma:CT Misdiagnostic Analysis

Objective To improve the CT diagnosis and differential diagnosis of pancreatic carcinoma by analysing the cause of CT misdiagnosis .Methods 17 patients with pancreatic carcinoma misdiagnosed at pre-operation by CT were analysed retrospectively. Artery and vein phase spiral CT scan were performed,the slice thickness was 3～5 mm. Results 17 cases misdiagnosed were as follows:chronic pancreatitis in 4 cases, chronic pancreatitis with pseudocyst in 2 cases, pseudocyst in 1 case, ampullar carcinoma in 2 cases, malignant tumor of duodenum in 2 cases, gastric carcinoma in 2 cases.Other in 4 cases.Conclusion By paying attention to the method of CT scan,and carefully analysing the data of CT images,the misdiagnostic rate of pancreatic carcinoma can be decreased.