Fibrous dysplasia is a developmental disease of the bone, characterized by the replacement of normal spongiosa and filling of the medullary cavity of affected bones by an abnormal fibrous tissue. Fibrous dysplasia arising in the paranasal sinus is rare and usually secondary to the extension of diseases from adjacent bones, and is rarely limited to the sinuses. Two patterns are predominant: he monostotic type, in which only one bone is affected; and the polyostotic type, in which multiple bones are affected. Recently, we experienced a case of monostotic fibrous dysplasia which was confined to the maxillary sinus and approached by the Caldwell-Luc method. Hence, we report a case of fibrous dysplasia of the maxillary sinus with a review of literature.
Fibrous Dysplasia, Monostotic ; Maxillary Sinus*