Mock D, Rosen I B
J Oral Pathol. 1986 Jan;15(1):1-4. doi: 10.1111/j.1600-0714.1986.tb00555.x.
A case is described of osteosarcoma arising in a pre-existing fibrous dysplasia fifty years after radiotherapy for facial hirsutism. The patient was treated by surgical excision and chemotherapy and is alive and free of disease five years later.