Which findings on CT scans are characteristic of hepatocellular adenoma (HCA)?

Updated: Feb 21, 2018
  • Author: Bradford A Whitmer, DO; Chief Editor: BS Anand, MD  more...
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HCA appears as a nonspecific, well-circumscribed mass that has a low density on noncontrast images and a marked centripetal pattern of enhancement on arterial phase. It then fades to isodensity in the portal or delayed phase. The lesion can have a central necrotic area or calcifications. Most adenomas are encapsulated on CT scan.

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