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患者男,2岁。上下颌骨无痛性膨胀生长1年。体检:上下颌膨胀(以上颌骨为著),无压痛,握乒乓球样感。五官三维CT成像示:上下颌膨胀性骨质破坏,破坏区内可见弥漫性、沙粒状、“亮晶晶”高密度影,破坏区边缘呈波浪状,骨皮质变薄、破坏、中断,双侧上颌窦窦壁受累,窦腔变小,病变内可见牙齿及多个牙根(图1A~D)。病理所见:大体病理,少许灰白穿刺组织,质韧;镜下示病变内纤维组织、骨小梁及牙骨质小体。病变周围可见骨小梁环绕,与周围结构分界较清。牙骨质小体大小不等,散在分布于纤维组织内。病理诊断:牙骨质化纤维瘤。讨论牙骨质化纤维瘤又名化牙骨质纤维
Male patient, 2 years old. Painless expansion of the mandible for 1 year. Physical examination: upper and lower jaw expansion (to the maxilla for), no tenderness, hold a sense of table tennis. Five-dimensional CT imaging showed: the expansion of the jaw bone destruction, the destruction of the area can be seen diffuse, sand-like, “bright crystal ” high density, wavy edge of the damaged area, cortical bone thinning, destruction, disruption, Side of the maxillary sinus sinus wall involvement, smaller sinus, visible lesions and multiple roots (Figure 1A ~ D). Histopathology seen: general pathology, a little gray puncture the tissue, quality tough; microscopic lesions within the fiber, trabecular and cementite body. Trabecular around the lesion visible tracts, and the surrounding structure more clear boundaries. Cementum bodies ranging in size, scattered in the fibrous tissue. Pathological diagnosis: cementum fibroma. Discussion Cementum fibroids, also known as dental cementum fibers