报道了3例发生于青少年额窦及上颌窦骨纤维异常增殖的病例，讨论了骨纤维异常增殖症的病因及治疗。以往文献提到，骨纤维异常增殖为一种良性病变，病因不清，与粘液囊肿、鼻窦骨动脉瘤的存在有一定关系。内分泌紊乱、错构瘤、骨发育异常亦可能是致病因素。该文报道3例。第1例， Reported in 3 cases occurred in adolescent frontal sinus and maxillary sinus bone abnormalities in the proliferation of cases discussed the cause of fibrous dysplasia and treatment. Previous literature mentions that abnormal proliferation of bone fiber is a benign lesion with unclear etiology and a certain relationship with the existence of mucoid cysts and sinus aneurysms. Endocrine disorders, hamartoma, bone dysplasia may also be a risk factor. This article reports 3 cases. The first case,