纤维性骨皮质缺损又称干骺端纤维性缺损、骨纤维瘤。我们遇到3例，均经手术及病理证实，现报告如下。例1男，11岁，左小腿扭伤2小时，左胫腓骨下段正侧位片见左胫骨下段外侧骨皮质内有一2．2×0.8cm2大小的囊状密度减低区，边缘清晰、硬化、膨胀。X线诊断：左胫骨下段纤维性骨 Fibrous cortical bone defects, also known as metaphyseal fibrous defect, bone fibroids. We encountered three cases, both confirmed by surgery and pathology, are as follows. Example 1 Male, 11 years old, left leg sprained for 2 hours, the left lateral tibia and fibula lower lateral segment is seen in the lateral cortex of the lower left tibia within a 2.2 × 0.8cm2 cystic densification area size, clear edge, sclerosis, expansion . X-ray diagnosis: left lower tibia fibrosis