Obstruction of the bile ducts.
D000368:Aged; D001653:Bile Ducts, Intrahepatic / Q000382:microbiology*; D002779:Cholestasis / Q000382:microbiology*; D004756:Enterobacteriaceae Infections / Q000150:complications*; D004927:Escherichia coli Infections / Q000150:complications*; D006801:Humans; D008297:Male