患者女,13d,出生后发现右小腿上段局限性膨隆,并进行性增大。其母怀孕8个月曾跌伤。临床诊断:右胫骨先天畸形。X线检查:右胫腓骨正侧位片示右胫骨上端见约2cm大小的中心性囊状膨胀性骨质破坏,其内有少量骨嵴,边缘尚规则,无硬化环。膨胀的骨皮质变薄呈蛋壳状。病灶近端伴病理性 Female patients, 13d, found after birth, the limitations of upper right leg bulging, and progressive increase. His mother fell 8 months pregnant fell. Clinical diagnosis: right tibia congenital malformations. X-ray examination: Right lateral tibia and fibula right lateral view of the right tibia showed about 2cm size of the central cystic expansive bone destruction, which has a small amount of bone ridge, the edge is still rules, no hardening ring. Expanded cortical thinning was egg-shell-like. Near the lesion with pathological