Osteosarcoma in the maxilla: a case report

We encountered a case of osteosarcoma in the maxilla of a 20-year-old man, who complained of gingival swelling of the left maxillary molar. Limited bone destruction was detected on conventional radiography, including panoramic radiography, whereas a more extensive lesion was seen on computed tomography (CT), and new bone formation was clearly seen in the three-dimensional CT image. CT was superior to conventional radiography, including panoramic radiography, for detecting the extent of bone destruction and new bone formation in the lesion, allowing more accurate evaluation of the osteosarcoma.