Caroli's syndrome with ureterovesical calculi in a young child.

An 18-month-old boy was admitted with fever, abdominal pain, and hepatomegaly. CT scan revealed dilatation of intrahepatic biliary radicals with central dot sign, bilateral nephrocalcinosis, multiple ureteric and urinary bladder stones and right-sided obstructive hydroureteronephrosis due to a ureterovesical calculus of about 1.5 cm. Liver biopsy showed early hepatic fibrosis.