Antibiotic-induced iatrogenic hemobilia.

A classical triad of clinical signs defines hemobilia: GI bleeding, right upper quadrant abdominal pain, and jaundice. Although there are a number of causes, it is largely described in conjunction with blunt or penetrating liver trauma and as an iatrogenic complication of therapeutic hepatobiliary interventions. We present a case of antibiotic-induced vitamin K deficiency that resulted in hemobilia complicating acalculous cholecystitis.