Gallbladder and Biliary Pathology

The gallbladder is an oblong pear shaped structure located on the underside of the liver. It is located at the level of the middle hepatic vein aka Cantlie’s line between segments IV and V. The normal distended gallbladder is approximately 7-10 cm in length and 4 cm in diameter. The capacity is usually 50 ml(1.8 fl oz) of bile. The GB is divided into neck, body and fundus, sonographic appearance is anechoic with an echogenic wall.… Read More Gallbladder and Biliary Pathology

Couinaud’s Liver Segments

Sonographically the liver is usually divided into right and left lobes . However the liver is divided into 8 functional segments with the¬†Couinaud classification¬†(pronounced kwee-NO). Each segment has it’s own vascular and biliary supply. The liver is divided horizontally by the portal veins and vertically by the hepatic veins. Segment I is the caudate lobe.… Read More Couinaud’s Liver Segments