Imaging diagnosis of intraductal papillary mucinous tumor of the pancreas
10.3760/cma.j.issn.1673-4904.2015.12.016
- VernacularTitle:胰腺导管内乳头状黏液腺瘤的影像诊断
- Author:
Xingyuan DONG
;
Feng WEN
- Publication Type:Journal Article
- Keywords:
Pancreas;
Myxoma;
Tomography,X-ray computed;
Magnetic resonance imaging
- From:
Chinese Journal of Postgraduates of Medicine
2015;38(12):912-916
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the imaging features of CT and MR in patients with intraductal papillary mucinous tumor of the pancreas (IPMT).Methods Imaging findings of 10 patients with histopathologically proved IPMT were retrospectively analyzed.Of 10 cases,CT was performed in 8 patients,and MR in 6 patients.Results Eight lesions were in pancreatic head and neck,and 2 lesions were in pancreatic body and tail.The images showed the dilated pancreatic duct in all the patients,and the diameter was (0.8 ± 0.2) cm.Three patients had the dilation of branch duct,and 4 patients showed atrophy of pancreatic body and tail.The CT showed 6 cases had cystic masses with septa and mural nodules;and 2 cases had the dilation of the main pancreatic duct with intraductal mural nodules.Lesions showed low signal intensities on T1WI and high signal intensities on T2WI with septa and mural nodules,which showed moderate hypointensity on T1WI and T2WI and heterogeneous enhancement on enhanced T1WI.Conclusions There are some characteristics in CT and MR manifestation of IPMT:common in pancreatic head and neck,dilated pancreatic duct,cystic tumors with septa and mural nodules,and the enhancement of cystic wall,septa and mural nodules.The disease might be correctly diagnosed with these characteristic imaging features.
