Table 1.

Clinical characteristics of the patients included in this series

Diagnosis	No. of patients	Gender (M/F)	Mean age at the diagnosis (year)	Age range at the diagnosis (year)
Monostotic FD	23	10/13	16.9	7–42
Polyostotic FD	9	5/4	14.3	6–34
MAS	24	11/13	6.3	1–14