This combination of symptoms indicates worsening of the condition and the development of sepsis, and is seen less commonly still.In the elderly, the presentation may be atypical; they may directly collapse due to sepsis without first showing typical features. Those with an indwelling stent in the bile duct (see below) may not develop jaundice. Causes
Bile duct obstruction, which is usually present in acute cholangitis, is generally due to gallstones. 10–30% of cases, however, are due to other causes such as benign stricturing (narrowing of the bile duct without an underlying tumor), postoperative damage or an altered structure of the bile ducts such as narrowing at the site of an anastomosis (surgical connection), various tumors (cancer of the bile duct, gallbladder cancer, cancer of the ampulla of Vater, pancreatic cancer, cancer of the duodenum), anaerobic organisms such as Clostridium and Bacteroides (especially in the elderly and those who have undergone previous surgery of the biliary system).Parasites which may infect the liver and bile ducts may cause cholangitis; these include  the roundworm Ascaris lumbricoides and the liver flukes Clonorchis sinensis, Opisthorchis viverrini and Opisthorchis felineus. In people with AIDS, a large number of opportunistic organisms has been known to cause AIDS cholangiopathy, but the risk has rapidly diminished since the introduction of effective AIDS treatment. Cholangitis may also complicate medical procedures involving the bile duct, especially ERCP. To prevent this, it is recommended that those undergoing ERCP for any indication receive prophylactic (preventative) antibiotics.The presence of a permanent biliary stent (e.g.
Contrary to pleomorphic adenoma, it is non recurrent. See also
Pleomorphic adenoma

References
Additional sources
Kahn, Michael A. Basic Oral and Maxillofacial Pathology. Volume 1. 2001. == External links ==