Hepatocellular carcinoma - atypical with central scar
Cirrhotic patient on follow up imaging.
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Selected MR images demonstrate heterogeneous enhancing lesion. Note that the peripheral components on the right side of the mass demonstrate more characteristic early arterial enhancement with washout, becoming hypointense c.f to the remainder of the liver. The central non-enhancing component remained non enhancing even in further delayed post contrast phases.
Rim enhancement, which is more obvious in delayed images.