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Regarding hepatocellular carcinomas, which of the following are true?
a) They are commonly hyperechoic on ultrasonography
b) The majority are hyperdense during the arterial phase on CT
c) The majority are hyperintense on T1-weighted and T2-weighted imaging
d) The central scar may bo hypo intense on T2-weighted imaging
e) Portal or hepatic venous invasion is seen on MRI in one third of patients

dahalunita Asked question July 27, 2021