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Intravascular papillary endothelial hyperplasia of the extremities: MR imaging findings with pathologic correlation
Authors:Sang?Hoon?Lee,Jin-Suck?Suh  author-information"  >  author-information__contact u-icon-before"  >  mailto:jss@yumc.yonsei.ac.kr"   title="  jss@yumc.yonsei.ac.kr"   itemprop="  email"   data-track="  click"   data-track-action="  Email author"   data-track-label="  "  >Email author,Byung?Il?Lim,Woo?Ick?Yang,Kyoo-Ho?Shin
Affiliation:(1) Department of Diagnostic Radiology, Brain Korea 21 project for Medical Science, Yonsei University College of Medicine, 132 Shinchondong, Seodaemoon-gu, 120-752 Seoul , Korea;(2) Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea;(3) Department of Pathology, Yonsei University College of Medicine, Seoul, Korea;(4) Department of Orthopedic Surgery, Yonsei University College of Medicine, Seoul, Korea
Abstract:We report the MRI findings of three cases of intravascular papillary endothelial hyperplasia (IPEH) of the extremities with correlation of the pathologic findings. The IPEH is a non-neoplastic reactive lesion within the vessels and is commonly associated with thrombi. Signal intensity of the IPEH is complex due to the thrombi and the PEH itself. The thrombi are characterized by a slightly hyperintense signal on T1- and T2-weighted images compared with that of muscle when it comes at the medium stage of hemorrhage. Papillary endothelial hyperplastic tissue appears either as iso- or hyperintense to the muscle on T2- and T1-weighted images and shows variable enhancement on Gd-DTPA-enhanced images.
Keywords:Intravascular papillary endothelial hyperplasia  Thrombi  Vascular tumor  MRI
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