In cholangitis, the organism mostly responsible is: (A) E.coli, (B) Streptococcus, (C) E.histolytica, (D) Clostridium
Answer is A. Ascending bacterial infection of the biliary ductal system with obstruction Most common cause is choledocholithiasis Most common organisms present in the bile in patients with cholangitis : E.coli (MC). Klebsiella pneumoniae, streptococcus faecalis & Bacteroides fragilis Ref: Sabiston 20th edition Pgno :1507