CT与平片诊断骨嗜酸性肉芽肿的评价

目的　探讨CT与平片对骨嗜酸性肉芽肿影像诊断价值。方法　回顾性分析 39例骨嗜酸性肉芽肿患者的X线、CT表现 ,且均经病理证实。结果　单发 2 2例 ,占 5 6 .4%( 2 2 /39) ,多发 17例 ,占 43.6 %( 17/39) ,单发病灶中以颅骨最多见 ,本组 8例 ,占 36 .4%( 8/2 2 )。骨嗜酸性肉芽肿的X线平片及CT表现可因病变部位及病程不同而异。结论　CT对显示骨嗜酸性肉芽肿的结构 ,尤其对于钮扣样死骨和软组织肿块的发现 ,优于X线平片 ,但不能取代X线平片检查 ,平片仍是诊断本病首选和基本方法。

The Evaluation of the Diagnosing Eosinophilic Granuloma of Bone with CT and X-ray Plain Film

Objective To discuss the diagnostic value of bone esoinophilic granuloma with CT and X-ray plain film.Methods The X-ray and CT manifestations of 39 patients with esoinophilic granuloma of bone confirmed by pathology were analysed retrospectively.Results Monofocal lesion was found in 22 cases(56.4%) and multifocal lesions were in 17 cases(43.6%).Monofocal lesion was most seen in skull 8 cases in this group(36.4%).The X-ray and CT manifestations of bone eosinophilic granuloma were varied with the site and pathologic process of lesion.Conclusion CT is better than plain film in demonstrating the internal components of bone eosinophilic granuloma,especially the button sequestrum and soft tissue mass in the lesion,but plain film examination still can't be replaced with CT scan.Plain film is still the primary method in diagnosis of eosinophilic granuloma of bone.