Abstract
Osteosarcoma of the jaws is a rare and aggressive malignant mesenchymal tumor characterized by the formation of osteoid tissue. A 32-year-old male patient reported a complaint of a painless, slow swelling on the right side of the mandible and paresthesia of the lower lip. Intraoral examination revealed a smooth nodular mass in the lower right alveolar ridge and dental mobility of the lower second molar. Computed tomography showed a mixed density lesion of the right body of the mandible with irregular margins and cortical erosions. There was a widened periodontal ligament space of the first and second lower molars. After incisional biopsy, the histologic sections revealed areas of mineralization and proliferation of stellate and spindle cells in a myxoid matrix. The cells showed moderate nuclear pleomorphism and minimal mitotic activity. A diagnosis of a low-grade osteosarcoma was given. The patient underwent surgical resection. There have been no signs of recurrence after 2 years of follow-up care.
Published Version
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