Right Retroperitoneal and Subhepatic Abscess; Late Complications Due to Spilled Stones During Laparoscopic Cholecystectomy - Case Report.

BACKGROUND Gallbladder perforation with gallstone spillage during laparoscopic cholecystectomy is usually an event with no consequences. CASE REPORT We report the case of a 66 year-old female admitted in our hospital with severe large abscess in the right lumbar region. Her medical history reveals a laparoscopic cholecystectomy for acute gallstone cholecystitis. Emergent abscess incision and drainage are performed, noticing a mass of stone outline. The abdominal CT scan shows fluid, air-bubbled collection with biloculate walls located in the right retroperitoneal subhepatic region. Laparoscopic procedure is performed, the subhepatic abscess is located and drained, the abscess cavity containing 19 gallstones. OUTCOME The post-operative evolution was favourable. The patient was discharged on the 6th post-operative day. CONCLUSIONS The stones left in the peritoneal cavity during laparoscopic cholecystectomy may be sometimes the cause of severe late complications.