Diagnostic Ultrasound - Abdomen and Pelvis

Hepatocellular Carcinoma
(Left) Transverse grayscale US
of the liver shows a markedly
heterogeneous liver with
multiple refractive shadows
ſt caused by diffuse,
infiltrative hepatocellular
carcinoma. Focal echogenic
lesion was shown to be a
fat-containing focus of HCC.
(Right) Axial CECT in the same
patient during the arterial
phase (left) and delayed phase
(right) shows innumerable
hypervascular HCC that
wash-out st. Focal fatcontaining
HCC ſt is seen in
the right lobe of the liver.
Tumor thrombus is present in
the left portal vein .
Diagnoses: Liver
(Left) Typical hepatocellular
carcinoma on triphasic CT
shows a hypervascular
hepatocellular carcinoma
on arterial phase that washes
out on portal venous ſt and
delayed st phase images.
(Right) Axial CT images of the
liver show a typical
hepatocellular carcinoma that
is hypervascular on arterial
phase and washes out on
portal venous ſt and delayed
phase. Delayed enhancing
pseudocapsule is seen
along the periphery of the
lesion.
(Left) Arterial phase CE T1
with FS MR (left) shows a
hypervascular hepatocellular
carcinoma , which washes
out on portal venous phase
and has an enhancing
pseudocapsule ſt. (Right) T1-
weighted MR without contrast
(left image) in the same
patient shows typical low
intrinsic T1 signal and
mildly hyperintense T2 signal
ſt (right image).
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