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. 2016 Sep 30;95(39):e4903. doi: 10.1097/MD.0000000000004903

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Copyright © 2016 the Author(s). Published by Wolters Kluwer Health, Inc. All rights reserved.

This is an open access article distributed under the Creative Commons Attribution-NoDerivatives License 4.0, which allows for redistribution, commercial and non-commercial, as long as it is passed along unchanged and in whole, with credit to the author. http://creativecommons.org/licenses/by-nd/4.0

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The CT HA/AP and MR images of a 48-year-old man with a 1 cm HCC. The CTHA image shows (A) a hypervascular nodule (arrow) in the early phase and (B) corona enhancement (arrow) in the late-phase. This lesion is (C) isointense on the gadoxetic acid-enhanced MRI during the arterial phase and (D) hypovascular (arrow) in the hepatobiliary phase. In the first interpretation session, the CT HA/AP reviewers diagnosed this lesion as HCC but the MRI reviewers missed this lesion. It was correctly diagnosed as HCC after additional review of the CT HA/AP images in the second interpretation session. CTHA = CT during hepatic arteriography, CT HA/AP = computed tomography during hepatic arteriography and arterial portography, HCC = hepatocellular carcinoma, MR = magnetic resonance, MRI = magnetic resonance imaging.