Abstract
There exist numerous anatomic bile duct variations1,2 and an aberrant right hepatic duct which drains the right hepatic lobe directly into the extrahepatic bliary tree occurs in 3.2–18.0% of patients.3 The rare anatomical variation of an accessory right hepatic duct into which a cystic duct drains (Fig. 1) was encountered during surgery for obstructive jaundice as a result of an echinococcic cyst. Detailed knowledge of such a variation is of importance in liver resection and transplantation. Furthermore, such an accessory duct may be liable to inadvertent transection or ligation during cholecystectomy. Figure 1 Accessory right hepatic duct1 into which the cystic duct drains. The accessory right hepatic duct drains extrahepatically into the common bile duct. CHD, common hepatic duct; CD, cystic duct
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