Diagnostic Ultrasound - Abdomen and Pelvis

Cholelithiasis
(Left) Abdominal radiograph
shows multiple laminated and
faceted gallstones . (Right)
Axial NECT in the same patient
shows a cluster of laminated
and faceted gallstones .
Diagnoses: Biliary System
(Left) Axial CECT through the
gallbladder shows the
"Mercedes-Benz" sign in 2 gascontaining
stones . There is
no cholecystitis. (Right) Axial
CECT of acute calculous
cholecystitis shows calcified
stones ſt in a thick-walled
gallbladder .
(Left) Left lateral decubitus
ultrasound shows a shadowing
small stone in the gallbladder
fundus . The stone was
mobile. Note the normal
gallbladder wall st. (Right)
Transverse ultrasound shows a
markedly contracted
gallbladder with a WES
sign. This could be mistaken
for gas filled duodenum.
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