Human Gallbladder Attached To The Biliary Tree

Description

Gallbladder anatomy is presented as a pear-shaped bile reservoir lying inferior to the right lobe of the liver, with its fundus projecting anteriorly and its neck tapering posteromedially toward the porta hepatis. The cystic duct exits the gallbladder neck and joins the common hepatic duct to form the common bile duct, establishing the central junction of the biliary tree. Proximally, right and left hepatic ducts converge into the common hepatic duct superior to the cystic duct insertion, while the extrahepatic bile duct continues inferiorly toward the expected course behind the first part of the duodenum and through the head of the pancreas. Lumen caliber changes are emphasized along each duct. Spatial relationships are easy to read. This arrangement matters because the cystic duct–common hepatic duct confluence is the surgical and endoscopic crossroads where iatrogenic injury and obstruction most often occur. Gallstones impacted in the cystic duct or gallbladder neck can produce acute cholecystitis or a Mirizzi syndrome pattern of extrinsic compression on the common hepatic duct, while distal obstruction of the common bile duct classically produces painless jaundice and a cholestatic laboratory profile. The illustration’s focus on duct continuity and branching offers a practical reference for Calot triangle discussions (cystic duct, common hepatic duct, and inferior liver surface) and for teaching why a short, spiral-valved cystic duct can complicate cannulation during ERCP. Use this illustration in hepatobiliary anatomy teaching, general surgery and gastroenterology board review materials, and medical publishing figures that need an accurate extrahepatic biliary tree for gallstone disease, cholecystectomy planning, or biliary obstruction algorithms. It also fits patient-facing surgical consent handouts where you need one static image to orient the cystic duct junction and downstream common bile duct course. Anatomical accuracy verified by SciePro's Medical Advisory Board.