Letourneau J G, Day D L, Maile C W, Crass J R, Ascher N L, Frick M P
AJR Am J Roentgenol. 1987 Jun;148(6):1099-103. doi: 10.2214/ajr.148.6.1099.
The CT findings in the abdomen after liver transplantation as seen on 72 examinations in 23 allograft recipients are described. CT was most useful in the evaluation of the gross structural integrity of the allograft and in the detection of extrahepatic fluid collections. Low-density foci within the allograft parenchyma were seen in 10 patients (43%) and were associated with infarction and necrosis, infection, malignancy, and rejection. Localized extrahepatic fluid collections (hematomas, bilomas, and seromas) were present in 16 patients (70%); four of the focal fluid collections detected by CT were infected. Since the nature of these fluid collections could not always be determined by CT characteristics, fine-needle aspiration was sometimes required for a specific diagnosis. Prominence of the portal structures was associated with previous or ongoing episodes of rejection in eight of nine patients, likely reflecting increased resistance to portal flow. CT occasionally showed low, dense, and calcified thrombi in the donor aorta and inferior vena cava. CT also showed biliary obstruction in four patients (17%) without identifying its cause. CT is a noninvasive means of imaging the hepatic allograft recipient; providing data on the hepatic parenchyma, vasculature, and biliary system; and identifying the presence of intraabdominal fluid.
描述了23例同种异体肝移植受者72次检查中腹部CT的表现。CT在评估同种异体移植肝的大体结构完整性和检测肝外积液方面最有用。10例患者（43%）在移植肝实质内可见低密度灶，与梗死、坏死、感染、恶性肿瘤及排斥反应有关。16例患者（70%）存在局限性肝外积液（血肿、胆汁瘤和血清肿）；CT检测到的4个局限性积液有感染。由于这些积液的性质不能总是通过CT特征来确定，有时需要细针穿刺进行明确诊断。9例患者中有8例门静脉结构突出与既往或正在发生的排斥反应有关，这可能反映了门静脉血流阻力增加。CT偶尔显示供体主动脉和下腔静脉内有低密度、高密度和钙化血栓。CT还显示4例患者（17%）存在胆道梗阻，但未明确其病因。CT是一种对肝移植受者进行成像的非侵入性手段；可提供有关肝实质、脉管系统和胆道系统的数据；并能识别腹腔内积液的存在。
