A 75-year-old male Caucasian with a history of rheumatoid arthritis and congestive heart failure presented with a recurrent subcutaneous abdominal wall abscess with occasional, spontaneous drainage of pus. He underwent laparoscopic cholecystectomy for acute calculous cholecystitis 3 years ago. Physical examination revealed periumbilical redness and tenderness with a draining percutaneous tract. Laboratory testing revealed a white cell count of 13,900 per cubic millimetre. A computed tomography (CT) scan showed a cavity in the periumbilical abdominal wall with peripheral contrast-enhancing, next to a calcified foreign body between the rectus muscle sheaths. Wound exploration under general anaesthesia was performed with drainage of the cavity, extraction of the foreign body and closure of the anterior rectus sheet over a drainage catheter. On pathological examination, the foreign body turned out to be a gallstone. It was lost in the periumbilical port site during the procedure in which gallbladder perforation occurred. “E. coli” bacteria were found on microbiological array. Antibiotic treatment with co-amoxiclav was continued for 14 days. The patient was discharged 9 days postoperatively with a clean wound, and continued to visit the outpatient clinic for wound follow-up for 8 weeks. Follow-up was uneventful.