Answer to Pathology MCQ 151

The Correct option is C

“Extrahepatic bile duct obstruction” is a blockage of the biliary tree at the level of the extrahepatic or common bile duct or at the level of the liver bile ducts (may involve one, several, or all ducts, depending on the disorder) that results in the flow of bile being decreased or stopped (known as “cholestasis”)

CAUSES

· Associated with diverse disorders

· Presence of hard, solid material in the bile duct or gall bladder (known as “cholelithiasis”)

· Inflammation of the common bile duct (known as “choledochitis”); the extrahepatic or common bile duct empties into the upper small intestine

· Cancer

· Malformation of bile ducts

· Parasitic infestation (flukes)

· Compression of the bile duct from surrounding tissues (such as lymph nodes, cancer, inflammation of the pancreas [pancreatitis], diaphragmatic hernia)

· Scarring of the bile duct (known as “duct fibrosis”), such as secondary to trauma, inflammation of the lining of the abdomen (known as “peritonitis”), inflammation of the pancreas (pancreatitis); major duct involvement in some cats with inflammation of the bile duct or biliary tree (known as “cholangitis”) and inflammation of the bile ducts and liver (known as “cholangiohepatitis”)

· Narrowing of the bile duct, secondary to blunt trauma, surgical manipulations/procedures

Category: Pathology MCQs