Extensive aneurysmal bone cyst of the mandible: surgical resection and immediate reconstruction. A case report. A case of extensive aneurysmal bone cyst of the mandible is described. The surgical defect was reconstructed immediately with two autogenous ribs and corallin porous hydroxyapatite. The postoperative results were good. There was no recurrence after 2 years of follow-up. The patient does not have any functional or esthetic problems. 