Surveillance and diagnosis of hepatocellular carcinoma: A systematic review

Table 6 Ancillary findings (LIRADS 2018)

Favoring HCC in particular	Favoring malignancy in general	Favoring benignity
Non-enhancing "capsule"	US visibility as discrete nodule	Size stability > 2 yr
Nodule-in-nodule	Subthreshold growth	Size reduction
Mosaic architecture	Restricted diffusion	Parallels blood pool
Blood products in mass	Mild-moderate T2 hyperintensity	Marked T2 hyperintensity
Fat in mass, more than adjacent liver	Fat sparing in solid mass	Undistorted vessels
	Iron sparing in solid mass	Iron in mass, more than liver
	Transitional phase hypointensity	Hepatobiliary phase isointensity
	Hepatobiliary phase hypointensity
	Corona enhancement

HCC: Hepatocellular carcinoma; US: Ultrasonography.