颅面骨纤维异常增殖症(Osteodysplasia Fibrosa,以下简称OF),是一种以骨纤维变性为特征的骨疾病。本病多见于儿童和青少年,由于局部骨质隆起畸变、功能障碍,特别是额骨,筛骨病变常侵及前颅窝、眼眶等隐蔽处,若手术切口选择不当,术后面部遗留瘢痕,因而术前确定病变范围及手术 Craniofacial fibrous dysplasia (Osteodysplasia Fibrosa, hereinafter referred to as OF), is a bone disease characterized by bone fibrosis. The disease is more common in children and adolescents, due to local bone bulge aberrations, dysfunction, especially the frontal bone, ethmoid bone lesions often invade the anterior cranial fossa, orbital and other hidden places, if the surgical incision improper choice, postoperative facial left scar, Therefore, to determine the scope of preoperative lesions and surgery