A case of parosteal osteosarcoma of the mandibular gingiva

Abstract

We report an extremely rare case of mandibular parosteal osteosarcoma along with a review of the literature. A 48-year-old woman was referred to our clinic for a painless tumor of the left side of the lower gum. The tumor was excised under local anesthesia and suspected to be a giant cell epulis on histological examination. However, the tumor recurred after three years. A biopsy specimen of the tumor was found to be an osteosarcoma. Partial resection of the mandible was carried out, and no tumor cell was noted in the mandible. The tumor was finally diagnosed to be a parosteal osteosarcoma. Presently, the patient is well and has had no recurence or evidence of matastasis.