Imaging findings and misdiagnosis analysis of intraductal papillary mucinous neoplasm
10.3969/j.issn.1002-1671.2017.05.013
- VernacularTitle:胰腺导管内乳头状黏液瘤影像特征及误诊病例分析
- Author:
Yun BIAN
;
Yu SHENG
;
Xu FANG
;
Chengwei SHAO
;
Li WANG
;
Jianping LU
- Keywords:
pancreatic neoplasm;
computed tomography;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2017;33(5):700-704
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the imaging findings and misdiagnosis of intraductal papillary mucinous neoplasm (IPMN),to improve diagnosis level and decrease misdiagnosis rate.Methods The images of 130 patients were suspicion or diagnosis of IPMN, and the other pancreatic lesions but confirmed IPMN by pathology.Two radiologists collected materials, analyzed the reasons of misdiagnosis, and found out countermeasures.Results A total of 130 patients confirmed by pathology were available for analysis, in which there were 105 (80.7%) of IPMN, and 25 (19.2%) of other pancreatic lesions.The most misdiagnosed patients were between IPMN and chronic pancreatitis(CP),serous cystadenoma(SCN).All patients were divided into mild to moderate group and severe to infiltrating carcinoma group based on pathologic grades.There was significant difference between two groups in cystic diameter, wall nodule, separation and dilation, the diameter of main duct, and intra-or extrahepatic biliary tract(P<0.05).The most common causes of misdiagnosis included that the radiologists didn't combined with the patient's clinical features,and didn't reconstruct images or perform MRCP scan when the relationship between the lesions and the pancreatic duct was unclear.Conclusion It is important that the radiologists need to combine with the patient's clinical features, clear the relationship between the lesions and the pancreatic duct, and fully master imaging findings.The recurrent pancreatitis maybe result from IPMN, and IPMN for a long time would lead to CP.
