Clinical Analysis and CT and MRI Diagnosis of the Solid-Cystic Papillary Tumors of the Pancreas
- VernacularTitle:胰腺囊实性乳头状瘤临床分析及CT、MRI诊断
- Author:
Tianli WANG
;
Yingqiu ZHENG
;
Fei PEI
- Publication Type:Journal Article
- Keywords:
pancreas;
neoplasm;
tomography,X-ray computed;
MRI
- From:
Journal of Practical Radiology
2001;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the CT and MRI features of solid-cystic papillary tumors(SCPTs) of the pancreas.Methods Eight cases of SCPTs confirmed by operation and pathology underwent both plain and contrast-enhanced CT examination,and MR examination in three cases and contrast-enhanced MRI in two cases.Results In the eight patients,the mean tumor diameter was 7.6 cm and the lesions were found mainly in the body and tail of the pancreas,only one at the pancreatic head.On plain CT scan,the tumors appeared as huge solid-cystic mass with definite margin and an integritied capsul,the solid areas were papillary or irregular components,and the cystic areas in central were low attenuation.On contrast-enhanced CT,the cystic wall and solid part were slight enhancement in arterial phase,and moderate or obvious enhancement in parenchymal phase.Irregular ringed and punctate calcification could be seen in five cases,the acute hemorrhage occurred in one case,slight dilation of the pancreatic duct was noticed in one patient.MRI showed an ovoid solid-cystic mass of the pancreas with distinct border.On T1WI,heterogeneous iso-and hypo-intensity was observed.One case showing the high signal intensity in tumor was subacute hemorrhage.On T2WI,the tumors were mixed hypo-,iso-and hyperintensity.The papillary or flocculent solid portion and the cystic wall were enhanced after gadolinium was used.Conclusion SCPTs is of certain clinic,CT and MRI characteristic findings,which can aid in reaching a proper diagnosis.
