The radiology corner. Porcelain gallbladder.

Porcelain gallbladder is an uncommon manifestation of chronic cholecystitis. Diagnosis is suggested on the plain abdominal roentgenogram by identifying thin curvilinear calcifications in the right upper quadrant. Because porcelain gallbladders fail to visualize on oral or intravenous studies, cholecystosonography may be used to confirm the location of the calcifications within the gallbladder wall.