Koga H, Takayasu K, Mukai K, Muramatsu Y, Mizuguchi Y, Furukawa H, Wakao F, Ushio K, Kosuge T, Shimada K
Department of Diagnostic Radiology, National Cancer Center Hospital, Tokyo, Japan.
J Comput Assist Tomogr. 1995 Mar-Apr;19(2):221-4. doi: 10.1097/00004728-199503000-00010.
To clarify imaging and clinicopathologic features of lymphoepithelial cysts (LEC), a benign lesion of the pancreas.
Two male patients with LECs that were found incidentally and proven surgically were reviewed.
Sonography revealed a hypoechoic mass in both cases, one of which had septation and an intracystic isoechoic component within it. The mass was shown as low attenuation on unenhanced CT, and the intracystic solid component was not enhanced by dynamic CT or computed tomographic arteriography. One lesion had calcifications around the mass. Magnetic resonance imaging showed hyper- in hypointensity on T1-weighted imaging and hypo- in hyper- on T2-weighted imaging in one case. Both lesions were located on the surface of the head of the pancreas, and the main pancreatic ducts appeared normal on endoscopic retrograde pancreatography. Both patients were asymptomatic.
These imaging and clinical findings suggest LEC, which should be considered when one encounters cystic lesions of the pancreas.
明确胰腺良性病变淋巴上皮囊肿（LEC）的影像学及临床病理特征。
回顾性分析2例偶然发现并经手术证实的LEC男性患者。
超声检查显示2例均为低回声肿块，其中1例有分隔且内部有囊内等回声成分。在未增强CT上肿块表现为低密度，动态CT或CT血管造影显示囊内实性成分无强化。1个病灶周围有钙化。1例磁共振成像显示在T1加权成像上呈高/低信号，在T2加权成像上呈低/高信号。2个病灶均位于胰头表面，内镜逆行胰胆管造影显示主胰管正常。2例患者均无症状。
这些影像学和临床发现提示为LEC，在遇到胰腺囊性病变时应考虑到该病。
