Diagnosis of DCE MRI for nonfunctioning pancreatic endocrine tumors
QIAN Ming-xia1, MA Zhou-peng2, ZHU Jian-zhong3, HE Zhong-heng1, CAO Zhao-fei1, ZHENG Wei1
1.Department of Radiology, Union Hospital of Cixi, Cixi Zhejiang 315300, China;2.Department of Radiology, Affiliated Cixi Hospital of Wenzhou Medical College, Cixi Zhejiang 315300, China;3.Department of Radiology, Affiliated Hospital of Taishan Medical College, Taian Shandong 271000, China
Abstract：Objective: To investigate the appearances and diagnostic value of dynamic contrast enhanced(DCE) MR for nonfunctioning pancreatic endocrine tumors. Methods: DCE MR in 13 cases and clinical data which were proved to be nonfunctioning pancreatic endocrine tumor by pathology were analyzed retrospectively. Results: There were 7 solid tumors and 6 solid-cystic tumors, the maximum diameter was 28~122 mm, the average diameter was 74 mm. All tumors MR T1WI showed equal or low signal and T2WI showed high signal on non-contrast scan. On dynamic contrast enhanced scan, most tumors showed obvious continued enhancement, the cystic area without enhancement. Envelope can be seen in the edge of 12 cases, showed low signal on non-contrast scan and obvious delayed enhancement on dynamic contrast enhanced scan. Conclusions: Central tumors always showed single large mass and with clear boundary, DCE MR is useful for the diagnosis.
2013, Vol. 24 
