title: Haemobilia causing cholangitis in a patient on dual anti-platelet treatment suffering from acute acalculous cholecystitis.
abstract: BACKGROUND
  Haemobilia is a rare cause of upper gastro-intestinal haemorrhage which can be difficult to diagnose.
  
  
  METHODS
  We present the case of a patient who suffered from acute acalculous cholecystitis while on dual anti-platelet therapy with aspirin and clopidogrel. We describe the diagnostic and treatment challenges arising from the patient's complicated past history and the steps leading to the diagnosis of haemobilia causing biliary obstruction and cholangitis. Our patient did not, at any point, manifest anaemia or evidence of haemorrhage.
  
  
  CONCLUSIONS
  Haemobilia has a varied aetiology. To our knowledge there is no association with dual anti-platelet treatment in the literature to date. Diagnosis is difficult and relies on multiple modalities. In our patient the final diagnosis was only made in the course of open bile duct exploration.
  
  
  CONCLUSIONS
  In acute biliary obstruction we recommend the consideration of haemobilia in the differential diagnosis, especially in patients with a bleeding tendency.
authors: Department of Surgery, Royal Alexandra Hospital, Corsebar Road, Paisley, PA2 9PN, UK. Electronic address: andreasluhmann@hotmail.com.
authors: Andreas
authors: A
authors: Luhmann
authors: Anton
authors: A
authors: Buter
authors: Jo-Etienne
authors: JE
authors: Abela