CHONDROSARCOMA LOCATED IN THE POSTERIOR MAXILLA

Chondrosarcoma is a malignant neoplasm that is rare in the jaws, accounting for approximately 0.1% of all neoplasms in this region. This report describes the case of a 37-year-old man who presented a swelling of firm consistency in the right maxilla region, which was asymptomatic with 11 months of evolution. The orthopantomography findings showed a discrete radiopaque mass with poorly defined limits involving the molar teeth. The incisional biopsy results revealed the presence of a lobular neoplasm containing cartilaginous matrix and atypical chondrocytes with different sizes, rare atypical mitoses, and sometimes binucleation and hyperchromatism. Invasion of alveolar bone and absence of necrosis was also observed. The final diagnosis was chondrosarcoma of histopathologic grade I with grade II areas. The patient underwent surgical resection with safety margins and was without signs of relapse.