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Lymphoepithelial cysts in the pancreas: MRI of two cases with emphasis of diffusion‐weighted imaging characteristics
Author(s) -
Nam Se Jin,
Hwang Ho Kyoung,
Kim Hyunki,
Yu JeongSik,
Yoon DongSup,
Chung JaeJoon,
Kim Joo Hee,
Kim Ki Whang
Publication year - 2010
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.22260
Subject(s) - magnetic resonance imaging , diffusion mri , pancreas , pathology , medicine , radiology
Pancreatic lymphoepithelial cysts (LECs) are rare pancreatic cystic lesions filled with keratinized material, lined by mature, keratinizing squamous epithelium and surrounded by lymphoid tissue containing few lymphoid follicles. We report two cases of surgically confirmed pancreatic LECs showing a profound restriction of water molecules on diffusion‐weighted (DWI) magnetic resonance imaging (MRI). For pancreatic cystic lesions showing lack of molecular motion on DWI with or without thin marginal enhancement on contrast material‐enhanced imaging, LECs consisting of internally keratinized materials with restricted diffusion should be considered in differential diagnoses even though they cannot always be easy to distinguish from other focal pancreatic lesions containing mucin, blood clot, or nonliquefactive necrosis. J. Magn. Reson. Imaging 2010;32:692–696. © 2010 Wiley‐Liss, Inc.