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Journal of Practical Radiology ; (12): 1368-1370,1374, 2017.
Artigo em Chinês | WPRIM | ID: wpr-686572

RESUMO

Objective To analyze the CT and MRI features of pancreatic serous micro-cystic cystadenoma (SMCA).Methods CT and MRI data of 17 patients with SMCA confirmed by pathology were analyzed retrospectively.Tumor's location,diameter,septation,contrast-enhancement features,calcification,central scar, and the extent of pancreaticobiliary duct dilatation were recorded.Results Seventeen patients were enrolled.10 underwent CT,6 underwent MR(2 patients also underwent MRCP), and 1 underwent both CT and MR.Tumors were located at pancreatic head in 2 cases,neck in 2 cases,and body/tail in 13 cases.Lesion size ranged from 1.7 cm to 14 cm with an average of 5.2 cm.Septation was seen in 16 cases.Central scar was seen in 9 cases Septation and scar were enhanced and cystic component was not enhanced on contrast enhancement.6 patients presented the main pancreaticduct dilation.Conclusion Pancreas SMCA has certain imaging features.It is always manifested as lobulated mass with multiple small capsules(<2 cm) and fiber separations.The fiber separation enhance significantly,but lower than normal pancreatic tissue.Central scar is the characteristic manifestation of SMCA, and it manifests iso or slightly lower signal on T1WI and T2WI.Typical SMCA can be diagnosed according to the CT and MR imaging manifestations.

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