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
Isha@2663 Answered question August 16, 2024
Regarding hepatocellular carcinomas, the true statement is:
B. The majority are hyperdense during the arterial phase on CT
Hepatocellular carcinomas (HCCs) typically show hyperdensity during the arterial phase of CT imaging due to their rich blood supply. The other statements are not accurate:
- A: HCCs are often hypoechoic or isoechoic compared to surrounding liver tissue on ultrasonography.
- C: HCCs are generally hyperintense on T2-weighted imaging but not necessarily on T1-weighted imaging; they often appear hypointense or isointense on T1-weighted imaging.
- D: The central scar of an HCC is usually hyperintense on T2-weighted imaging, not hypointense.
- E: Portal or hepatic venous invasion is more commonly seen in a higher proportion of patients, not just one third.
Isha@2663 Answered question August 16, 2024