Most common cause of cholangitis -

Gall stones are the most common cause of obstruction in cholangitis. Other causes are benign & malignant strictures parasites instrumentation of the ducts and indwelling stents partially obstructed biliary enteric anastomosis Most common organisms cultured from bile in patients with cholongitis include Escherichia coli Klebsiella pneumoniae Streptococcus faecalis Enterobacter Bacteroides fragilis