患者男，8岁。无明显诱因左下颌骨体部无痛性缓慢增大包块3个月，X线提示为骨囊肿。术中见肿瘤位于颌骨内，边界清楚，无明显包膜，与周围组织有一层肉眼可见的血管网膜相隔。肿瘤为谈粉红色，大小约为3×3×3cm，切面灰白色，实性、质韧。术后愈合良好，1年后复查未见复发。镜 Patient male, 8 years old. No obvious incentive to slowly increase the mass of the left mandibular body mass slowly for 3 months, X-ray showed bone cysts. Surgery, see the tumor located in the jaw, the border is clear, no significant capsule, and the surrounding tissue with a layer of macroscopic vascular retinal detachment. Tumor to talk about pink, the size of about 3 × 3 × 3cm, cut gray, solid, qualitative tough. Postoperative healing well, no recurrence after 1 year review. mirror