SYSTEMIC FIBROUS DYSPLASIA INVOLVING MULTIPLE BONES IN HUMAN-BODY - REPORT OF 4 CASES

Four cases of systemic fibrous dysplasia were selected from 356 cases of fibrous dysplasia. All of them were verified pathologically. In the se 4 cases, the long, short, flat and irregular bones were involved. S ome of the changes were characteristic in comparison with those of the monostotics or regional types. This disorder was often seen clinicall y in females, started in early childhood and exacerbated during pubert y. Its main symptoms were primary or secondary deformities. Radiologic ally, the main changes were diffuse and uniform expansion and developm ental disturbances of the bones and joints.