牙源性纤维瘤是牙源性肿瘤的一种,临床较为少见。我院遇到2例,现报告如下。例1:俞××,男,35岁。左上颌包块进行性增大已5年,于1974年3月17日入院。患者于5年前发现左上颌磨牙区有一肿块,大如蚕豆,质硬不痛。嗣后逐年生长,1年后大如拳头。近两年来肿块生长加快,左面部明显畸形,张口进食不便,但无炎症及疼痛。既往史无特殊。 Odontogenic fibroids is a kind of dental tumors, clinically rare. Our hospital encountered two cases, the report is as follows. Example 1: Yu × ×, male, 35 years old. Left maxillary mass progressively increased 5 years, in March 17, 1974 admission. 5 years ago, patients found a lump in the left maxillary molar area, as large as beans, hard and not hurt. Subsequent growth year after year, as big as a fist. In the past two years, the tumor growth accelerated, the left facial obvious deformity, mouth inconvenience to eat, but no inflammation and pain. No previous history.