Rare anatomic variations of the right hepatic biliary system

Area of Science:

• Anatomy
• Surgical Anatomy
• Hepatic Surgery

Background:

• The biliary system's complex anatomy is crucial for liver function.
• Variations in biliary drainage can complicate surgical procedures.
• Understanding these variations is essential for preventing complications.

Purpose of the Study:

• To document uncommon and clinically relevant anatomic variations.
• Focus on the biliary drainage patterns of the right hepatic lobe.

Main Methods:

• Dissection of 100 formalin-fixed cadaveric livers.
• Detailed examination of extrahepatic and intrahepatic biliary drainage.
• Focus on variations within the right hepatic lobe.

Main Results:

• Aberrant drainage of right segmental and sectorial ducts observed in 4 cases.
• Accessory right posterior sectorial duct identified in 2 cases.
• Identified significant biliary drainage anomalies in 6 out of 100 livers.

Conclusions:

• Encountered complex biliary drainage patterns in the right hepatic lobe.
• Failure to recognize these variations can lead to severe complications.
• Highlights the importance of detailed preoperative assessment and surgical planning.