Diagnostic Ultrasound - Abdomen and Pelvis

Acute Calculous Cholecystitis
(Left) Supine transverse
ultrasound shows a thickened
edematous gallbladder wall
st with dependent sludge
(stones not shown). Note the
complex fluid medial to the
liver ſt. (Right) Transverse
ultrasound of perforated
acute cholecystitis. There is a
collection with low-level
echoes (abscess) ſt medial to
the thick-walled gallbladder
.
Diagnoses: Biliary System
(Left) Transverse ultrasound of
acute cholecystitis shows
dependent gallstones and
sludge . Note wall
thickening st and inflamed
echogenic fat medially ſt.
(Right) Axial CECT of the same
patient shows a distended,
thick-walled gallbladder st
with dependent stones and
sludge. Note the inflammatory
stranding in the
pericholecystic fat ſt.
(Left) Axial T2 HASTE MR in a
patient with acute calculous
cholecystitis shows multiple
small gallstones ſt and
intramural edema st. (Right)
Longitudinal oblique
ultrasound in a patient with
emphysematous acute
cholecystitis shows that the
gallbladder is distended and
sludge-filled with an impacted
gallstone . Bright
intramural echoes represent
gas ſt.
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