[Monostotic fibrous dysplasia. Three cases and literature review].

The fibrous dysplagia is a rare benign osseous pathology of unknown aetiology. It presents an incidence of craniofacial affectation of a 10% in its monostotic variety and a 100% in the poliostotic. The temporal bone implication is very rare, being usually referred in the monostotic variety. The diagnosis is based on radiology (CT) and histology. The majority of the authors agree in a conservative treatment. We present three clinical cases of monostotic fibrous dysplagia with craniofacial affectation, two of them in the temporal bone and another one in the frontal bone.