Diagnostic Ultrasound - Abdomen and Pelvis

Hepatocellular Carcinoma
Diagnoses: Liver
(Left) Transverse and
longitudinal grayscale
ultrasound of the liver shows a
solid, heterogeneous
hepatocellular carcinoma st,
which mildly bulges the liver
contour ſt. (Right) Transverse
grayscale ultrasound of the
right lobe of the liver shows a
large, echogenic, solid
hepatocellular carcinoma st.
(Left) Dual image contrastenhanced
ultrasound
(left=contrast image,
right=grayscale) of the liver
during the arterial phase
shows a hypervascular
hepatocellular carcinoma st
clearly enhancing to greater
extent compared to adjacent
background parenchyma.
(Right) Contrast-enhanced US
of the same patient during the
delayed phase shows the
hepatocellular carcinoma has
washed out st compared to
background liver, a
characteristic imaging feature
of hepatocellular carcinoma.
(Left) Color Doppler US and
contrast-enhanced CT show a
large, infiltrative HCC st.
Infiltrative tumor on US may
be challenging to identify, but
marked displacement of the
hepatic vessels posteriorly
is a helpful clue to the
presence of the mass. Tumor
thrombus ſt is often seen
with large, infiltrative HCC.
(Right) Transverse grayscale
US of the liver shows a large,
predominantly echogenic mass
st with a thick, hypoechoic
central scar . Mass was
proven to be a fibrolamellar
carcinoma.
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