giant cell tumor of maxillary sinus: a case report

Giant cell tumor is a benign primary bone neoplasm that usually occurs in the long bones. the skull is affected in only 1% of cases, predominantly in the sphenoid and temporal bones. maxillary sinus involvement is exceedingly rare. the presented case is a 26 year-old man referred with history of gradual increase of swelling in the right side of face without any history of trauma or systemic disorders. based on history, clinical examination and paraclinical finding, biopsy was done and pathology report was giant cell lesion.