OSTEOSARCOMA IN THE UPPER-JAW
IN A 13-YEAR-OLD BOY
– Osteosarcomas are malignant bone tumours in which cells of mesenchymal origin produce osteoid. Less than 0,2 % of new cancer cases per year are osteosarcomas, of which 8% are present in the axial skeleton, consisting of the cranium, the vertebral columna, costae and sternum. The incidence is highest in younger adults and the primary treatment is surgery.
– A 13-year-old boy was in conjunction with orthodontic treatment referred to Clinic of Oral and Maxillofacial Surgery at Copenhagen University Hospital, Rigshospitalet for removal of a tumour in the region of the second premolar and first molar in the upper left jaw. Histological examination showed a low-grade osteosarcoma. Subsequently, en bloc resection was carried out with simultaneous removal of the second premolar and first molar in the upper left jaw. There was no need for further surgery or chemotherapy and the patient made a full recovery by 2-year control.
– A solid, well-defined, slow growing swelling of the upper jaw may represent various pathological conditions. Histological examination is necessary in order to make a definitive diagnosis and initiate relevant treatment.