We present reconstruction of a wide anterior abdominal defect measuring 30 x 45 cm(2), the result of necrotising pancreatitis. After serial debridements and reconstruction of the peritoneum using a Prolene mesh support, a delayed extended groin flap was transposed. No complications were encountered afterwards. An extended groin flap can be used safely to cover a full-thickness defect of the abdominal wall encompassing all of the anatomic subunits.