Diagnostic Ultrasound - Abdomen and Pelvis

Periportal Lesion
Peribiliary Cyst
Hepatic Schistosomiasis
(Left) Transverse abdominal
color Doppler US shows
several well-defined small
peribiliary cysts st along the
left portal vein . (Right)
Transverse abdominal US in a
patient with hepatic
Schistosomiasis shows thick
echogenic mantle of fibrotic
tissue ſt in the periportal
area, encasing the portal veins
. (Courtesy W. Chong, MD.)
Differential Diagnoses: Liver
Recurrent Pyogenic Cholangitis
Recurrent Pyogenic Cholangitis
(Left) Transverse abdominal
US in a patient with recurrent
pyogenic cholangitis shows
echogenic intrahepatic stones
ſt and sludge st within
moderately dilated
intrahepatic biliary ducts.
Note the periductal
hyperechogenicity , related
to periductal inflammation.
(Right) Color Doppler US in the
same patient demonstrates no
flow within the dilated
intrahepatic duct ſt,
confirming the findings are
indeed in the biliary tree
rather than the portal or
hepatic arterial system.
Hepatic Artery Calcification
Cystic Duct Remnant
(Left) Transverse abdominal
color Doppler US shows
multifocal linear branching
echogenic structures ſt that
are hepatic artery
calcifications related to endstage
renal disease. (Right)
Longitudinal color Doppler US
in a patient who underwent
cholecystectomy shows a
cystic duct remnant that
appears as a round cystic
lesion in the region of the
porta hepatis.
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