PSC

Ultrasound findings

One of the earliest features in PSC is on sonography where we see thickening of the wall of the bile duct as is seen in the image on the left.
This patient came for an ultrasound examination to rule out gallstones.
Notice that the intrahepatic ducts are normal.
The differential diagnosis would include PSC, AIDS-cholangitis and cholangiocarcinoma.
A cholangiocarcinoma would be rather unlikely, because there is no obstruction.
Continue with the CT. 

PSC with thickening of the wall of the bile duct (arrow)