Abstract
Retroperitoneal biloma and accompanying bilioscrotum are very rare entities. A 49-year-old male patient underwent endoscopic retrograde cholangiopancreatography procedure with the preliminary diagnosis of stone-mud in the common bile duct. On the seventh day after the procedure, diffuse air densities observed around the duodenum and biliary stent protruding beyond the lumen in the non-contrast abdominal computed tomography examination were evaluated as duodenal perforation. In addition, a collection area compatible with biloma was observed in the retroperitoneal area. Extension of the retroperitoneal biloma from the inguinal canal to the scrotal sac was observed in the follow-up imaging (bilioscrotum). The patient was operated after biliary drainage with percutaneous treatment was provided. Delay in the diagnosis and intervention following duodenal perforation leads to significantly higher mortality, and bilioscrotum should be kept in mind in a patient presenting with scrotal pain and swelling after any surgical or invasive procedure, and duodenal perforation should be considered as a possible cause.