Hepatocellular adenoma ultrasound

Hepatocellular adenoma Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Nawal Muazam M.D.[2]

Ultrasound

On ultrasound hepatocellular adenoma is characterized by:

• A solitary well-demarcated heterogeneous mass,

• It has been reported that 20%–40% of hepatocellular adenomas are hypoechoic and up to 30% are hyperechoic.

• A hypoechoic halo of focal fat sparing is also frequently seen.

• Colour Doppler: may show perilesional sinusoids
• Contrast-enhanced ultrasound

• arterial phase

• hypervascular (similar to FNH, although adenomas are usually less enhancing)

• portal venous and delayed phases

• centripetal filling in (opposite of FNH which shows centrifugal filling)

References

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