Soyer P
Department of Radiology, Johns Hopkins Hospital, Baltimore, Maryland.
Clin Imaging. 1994 Oct-Dec;18(4):255-7. doi: 10.1016/0899-7071(94)90003-5.
Retraction of the liver capsule adjacent to a hepatic tumor is an unusual feature that has received little attention in radiological literature. We report two patients with pathologically proved malignant tumor of the biliary tract (one cholangiocarcinoma and one gallbladder cancer) in whom magnetic resonance imaging (MRI) showed retraction of the liver capsule adjacent to the tumors. MRI was performed at 1.0 T, using a spin-echo (SE) technique, with T1 (TR/TE = 450/15 msec) and T2 (TR/TE = 2000/45 to 90 msec)-weighted images. Capsular retraction was seen on both T1- and T2-weighted SE MRI. Although capsular retraction of the liver adjacent to hepatic tumors is highly suggestive for epithelioid hemangioendothelioma, these two cases confirm that retraction of the liver capsule adjacent to hepatic tumors can be associated with other types of tumor, and especially with malignant tumors of the biliary tract.
肝肿瘤附近肝包膜的回缩是一种不常见的特征，在放射学文献中很少受到关注。我们报告了两名经病理证实为胆道恶性肿瘤（一例胆管癌和一例胆囊癌）的患者，其磁共振成像（MRI）显示肿瘤附近的肝包膜回缩。MRI在1.0 T下进行，采用自旋回波（SE）技术，包括T1（TR/TE = 450/15毫秒）加权像和T2（TR/TE = 2000/45至90毫秒）加权像。在T1加权和T2加权SE MRI上均可见包膜回缩。虽然肝肿瘤附近的肝包膜回缩高度提示上皮样血管内皮瘤，但这两例病例证实，肝肿瘤附近的肝包膜回缩可能与其他类型的肿瘤有关，尤其是与胆道恶性肿瘤有关。
