[Monostotic fibrous dysplasia of the upper maxilla. A case report].

Fibrous dysplasia is a rare bone condition characterized by the replacement of healthy bone by fibrous tissue and different grades of bone metaplasia. It may affect one (monostotic) or more bones (polyostotic). We present the case of a patient with monostotic fibrous dysplasia of the upper maxilla and analyze the clinical characteristics, diagnostic and therapeutic aspects, and the bibliography of the disease.