title: Bony enlargement of the left maxilla.
abstract: A swelling in the left maxilla of a 46-year-old man, which had been enlarging for several years, was diagnosed as fibrous dysplasia. The disease usually affects only one bone and the lesion is benign; however, it can involve multiple bones and systemic complications may develop. A diagnosis of fibrous dysplasia, indicated by radiographic evaluation, should be confirmed by biopsy examination.
mesh_terms: D005147:Facial Bones / Q000473:pathology; D005357:Fibrous Dysplasia of Bone / Q000473:pathology*; D006801:Humans; D008297:Male; D008439:Maxillary Diseases / Q000473:pathology*; D008875:Middle Aged