A large partially exophytic hetero-signal mass with internal layer detachment was seen in the upper pole of the left kidney. There is no sign of local invasion to adjacent structures. Gallbladder is not seen (prior surgery).
Central intra and extra-hepatic bile ducts are mildly dilated (CBD=11 mm). There is no filling defect at dilated ducts and distal part of CBD shows tapering. Features may consistent with post cholecystectomy changes.