T-tube cholangiogram with a retained stone in CBD.Dr.Masfique A Bhuiyan FCPSBy Dr.Masfique Ahmed Bhuiyan / January 4, 2021 T-tube cholangiogram with a retained stone in CBD.Dr.Masfique A Bhuiyan FCPS T-tube cholangiogram with a retained stone in CBD.Dr.Masfique A Bhuiyan FCPS