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MDCT and Gd-EOB-DTPA Enhanced MRI Findings of Adrenal Adenoma Arising from an Ectopic Adrenal Gland within the Liver: Radiologic-Pathologic Correlation

机译:肝内异位肾上腺引起的肾上腺腺瘤的MDCT和Gd-EOB-DTPA增强MRI表现:放射-病理学相关性

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摘要

We report a case of an adenoma arising from an ectopic adrenal gland mimicking a hepatocellular carcinoma in a heavy alcohol abuser. A MDCT showed a 2.7 low-attenuating nodule in segment VII of the liver through all CT phases. Compared to a precontrast image, however, a subtle enhancement was noted on the arterial phase CT image. On T1 weighted in- and opposed-phase MR images, an abundant fat component within the lesion was seen. Dynamic contrast-enhanced MR images after administration of gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid (Gd-EOB-DTPA) more clearly depicted hypervascularity and wash-out of the lesion on arterial and portal phases, respectively. On delayed hepatobiliary phase MR images, obtained 20 minutes after Gd-EOB-DTPA administration, subtle uptake or retention of the contrast agent by the lesion was suspected. A tumorectomy was performed and adrenal adenoma from an ectopic adrenal gland within the liver was confirmed.
机译:我们报告一例因重度酗酒者模仿肝细胞癌的异位肾上腺引起腺瘤的病例。在所有CT期中,MDCT在肝脏的VII段均显示出2.7个低衰减结节。但是,与对比前图像相比,在动脉相位CT图像上发现了细微的增强。在T1加权的同相和反相MR图像上,病变内可见大量脂肪成分。 administration乙氧基苄基二亚乙基三胺五乙酸(Gd-EOB-DTPA)给药后,动态对比增强的MR图像分别更清晰地描绘了动脉期和门静脉期的病变的超血管形成和冲洗。在Gd-EOB-DTPA给药20分钟后获得的延迟肝胆期MR图像上,怀疑病变对造影剂的吸收或保留很小。进行了肿瘤切除术,并确认了来自肝脏内异位肾上腺的肾上腺腺瘤。

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