骨嗜酸性肉芽肿的影像诊断

Imaging diagnosis of bone eosinophilic granuloma

目的探讨骨嗜酸性肉芽肿的影像表现特点。方法回顾性分析10例经手术病理证实的骨嗜酸性肉芽肿的X线、CT及MRI表现。10例患儿均接受CT检查,3例同时接受患部X线平片检查,5例同时接受患部MR检查,其中4例接受MR增强扫描。结果病变单发8例,多发2例。累及颅面骨4例,长骨3例(肱骨1例,胫骨1例,股骨1例),髂骨2例,锁骨2例,椎体1例,肩胛骨1例。不同部位病变影像学表现有差异,主要表现为骨质破坏,形成软组织肿块,边缘清楚、无硬化。结论综合影像学检查能显示骨嗜酸性肉芽肿的病变形态、范围、特点,有助于诊断及鉴别诊断。

Objective To discuss the imaging features of bone eosinophilic granuloma.Methods X-ray,CT and MRI manifestations of 10 patients with bone eosinophilic granuloma confirmed by pathology after operation were reviewed retrospectively.All 10 patients underwent CT examination,3 underwent X-ray examination,5 underwent MR examination,4 of them underwent enhanced MR examination.Results Single lesion was found in 8 patients and multiple lesions were in 2.Craniofacial involvement was observed in 4 cases,long bone involvement in 3（humerus in 1,tibia in 1,femur in 1）,iliac bone in 2,clavicle in 2,vertebral body in 1,scapula in 1 case.The radiographic characteristics of the lesions appeared different according to the location.Common radiographic findings included serious bone destruction and soft tissue mass with clear edge without hardening.Conclusion Integrated imaging can display the lesions of eosinophilic granuloma,the involvement scope and characteristics,therefore contributing to the diagnosis and differential diagnosis.