Ectopic retained gallstone causing an abdominal wall abscess

A 67-year-old lady was managed with percutaneous cholecystostomy for severe acute cholecystitis with septic shock. An interval laparoscopic subtotal cholecystectomy was done at 8 weeks. Her post-operative phase was complicated by intra-abdominal abscess requiring radiologically guided percutaneous drain insertion. Five days following the removal of the drain, she presented with a right abdominal wall abscess. A computerized tomography scan showed an abdominal wall ectopically-retained gallstone. The gallstone was retrieved along with drainage of abscess.