Presentation
Right upper quadrant pain. Known cholelithiasis.
Patient Data
Age: 55 years
Gender: Female
From the case:
Gallstone
Frontal
Large well-defined rounded calculus projecting over the right 12th rib and upper pole of the right kidney (this is a known large gallstone). Right-sided PCN can also be seen.
Case Discussion
Radiopaque gallstones can be seen on plain x-ray film. They can show the following features:
- may be laminated (a.k.a. lamellated)
- may have a faceted outline
- may show a Mercedes-Benz sign: triradiate pattern of gas lucency.
Unable to process the form. Check for errors and try again.