biloma due to blunt liver trauma

background: biloma is a rare abnormal localized accumulation of bile out of biliary tree due to an injury. it has different non-specific clinical features and its diagnosis is based on clinical signs, radiologic findings and chemical analysis of aspirated liquid. considering the non-specific clinical features, early diagnosis and treatment can have an effective role in the decrease of complications or even mortality and morbidity. case presentation: a 31 year-old man with dyspnea which had decreased pulmonary sound in the right lung base referred to our center. two months ago, he had a history of laparotomy and a repaired liver rupture due to the blunt hepatic injury in an accident. his chest xray and abdominal ultrasonography showed a mass in his right liver lobe. the patient underwent the fna with ultrasonography guide. chemical analysis of aspirated liquid proved that the liquid was bile. the next follow up, the mass disappeared and no recurrence was detected.conclusion: diagnosis of biloma in a patient with the history of blunt liver trauma should be considered for proper interventional treatment in order to reduce morbidity and mortality.