Figure 21a.  Aberrant right hepatic duct detected incidentally in a 38-year-old woman. (a) MR cholangiogram shows an aberrant right hepatic duct (arrow) draining into the cystic duct remnant (arrowheads). (b) Endoscopic retrograde cholangiogram demonstrates communication of the aberrant right hepatic duct (arrow) with the cystic duct remnant (arrowheads). Note the surgical clips adjacent to the cystic duct remnant.