You D L, Tzen K Y, Chen J F, Kao P F, Tsai M F
Department of Nuclear Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan, ROC.
J Nucl Med. 1997 Dec;38(12):1977-9.
Focal retention of radioactivity in the liver on whole-body 131I scan was interpreted as a metastatic lesion in a patient with well-differentiated thyroid cancer. Intrahepatic duct dilatation, usually resulting from biliary tract obstruction by bile stone, is a common disorder and may cause bile stasis. A patient with papillary thyroid cancer and a previous history of biliary tract stones had focal retention of radioactivity in the liver on whole-body 131I scan. Abdominal CT, endoscopic retrograde cholagiopancreatography, radionuclide cholangiography and sequential 131I scans demonstrated that this focal retention of radioactivity was caused by intrahepatic duct dilatation. Focal retention of radioactivity is visualized on delayed images but not on early images. The radioactivity initially increases and then decreases on following days.
在一名高分化甲状腺癌患者中，全身¹³¹I扫描显示肝脏放射性局部滞留，被解释为转移性病变。肝内胆管扩张通常由胆结石引起的胆道梗阻所致，是一种常见病症，可能导致胆汁淤积。一名患有乳头状甲状腺癌且有胆道结石病史的患者，全身¹³¹I扫描显示肝脏有放射性局部滞留。腹部CT、内镜逆行胰胆管造影、放射性核素胆管造影及连续¹³¹I扫描表明，这种放射性局部滞留是由肝内胆管扩张引起的。放射性局部滞留可在延迟图像上显示，但早期图像上不显示。随后几天，放射性最初增加，然后减少。
