ACR LI-RADS

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Hyperenhancement

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Definition:

Enhancement that unequivocally is greater than that of liver.

If there is equivocal hyperenhancement:

Characterize as isoenhancement

Comments:

Applies to observations that, after contrast injection:

unequivocally enhance, in whole or in part, more than liver and
are higher in attenuation or intensity than liver

May apply to arterial phase, portal venous phase, or delayed phase.
Specifying the phase is recommended.

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