A case of giant cell granuloma associated with ameloblastoma of the mandible

A case of giant cell granuloma associated with ameloblastoma of the mandible is presented. The patient, a 47-year-old man, complained of tumor of the lower gingiva. A operation was performed with block dissection of the mandible included the oral mucosa and reconstruction with sternocleidomastoid osteomusclocutaneous flap. After the operation, there has been no recurrence of the tumor and prognosis is excellent.It is surmised that a reactive process, whereby the stroma is transformed into a giant cell granuloma, has taken place secondary to bone damage by ameloblastoma or marsupialization 14 years ago.