The extrahepatic bile duct morphometry was determined by the analysis of the colangiographies performed at Medimar Imaging Services SRL of the “St. Andrei “in Constanta on a General Electric Brightspeed Select CT scanner 16 slides. For the left liver duct found a caliber of 3.5-6.6 mm, its length ranging from 4.2-24.9 mm, and the right hepatic duct had a caliber ranging from 4.2-7.2 mm, the length being between 3.0-25.0 mm. At the confluence of the two hepatic ducts an angle of 35.0-124.1° was formed. In the common hepatic duct we found a caliber of 3.9-9.7 mm, in length between 20.2-52.9 mm. Cystic duct having a size of 2.4 to 5.5 mm, finding a length ranging from 24.6 to 66.4 mm. The angle formed at the end of the cystic duct in the hepatic duct had a value between 6.2-55.8°, and between the cystic and biliary ducts an angle of between 88.5-170.4° was formed. The coledoc duct had a caliber of 3.1-14.7 mm and a length of 19.8-57.3 mm.