Haemobilia causing cholangitis in a patient on dual anti-platelet treatment suffering from acute acalculous cholecystitis.

INTRODUCTION: Haemobilia is a rare cause of upper gastro-intestinal haemorrhage which can be difficult to diagnose. PRESENTATION OF CASE: 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. DISCUSSION: 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.
CONCLUSION: In acute biliary obstruction we recommend the consideration of haemobilia in the differential diagnosis, especially in patients with a bleeding tendency.