Diagnostic Ultrasound - Abdomen and Pelvis

Pyogenic Hepatic Abscess
(Left) Oblique transabdominal
grayscale ultrasound shows an
ovoid hypoechoic pyogenic
abscess in the right lobe of the
liver ſt containing liquefied
material as well as subtle
irregular septations st. Note
hypoechoic edematous
adjacent hepatic parenchyma
. (Right) Oblique
transabdominal color Doppler
ultrasound performed in the
same patient shows no color
flow within the hepatic
abscess ſt. Note the
peripheral hypoechoic rim
surrounding the abscess cavity
due to edema of adjacent
hepatic parenchyma.
Diagnoses: Liver
(Left) Oblique transabdominal
grayscale ultrasound shows an
irregularly shaped, nearly
anechoic abscess ſt
containing minimal internal
echogenic debris st. Note
posterior acoustic
enhancement . (Right)
Oblique transabdominal color
Doppler ultrasound shows a
centrally cystic hepatic
abscess st with a surrounding
hypoechoic hepatic
parenchyma ſt in the right
lobe of the liver. Central
internal septations and
echogenic debris are seen
within the hepatic abscess.
(Left) Transverse ultrasound of
the right lobe of the liver
shows a hepatic abscess
caused by a dropped
appendicolith from remote
appendectomy. The abscess
cavity is hypoechoic and
contains irregular internal
echogenic debris st. (Right)
Oblique abdominal color
Doppler ultrasound shows a
large pyogenic abscess in the
right lobe of the liver
composed of a cluster of
multiple abscesses ſt. Note
peripheral hepatic
hypervascularity .
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