急性粟粒性肺结核的HRCT表现

HRCT manifestation of military pulmonary tuberculosis

目的 分析急性粟粒性肺结核的HRCT表现 ,评价其价值。方法 对 2 8例行HRCT检查的急性粟粒性肺结核的病例进行分析 ,并与X线胸片和CT进行比较。结论 4 2 .9%的急性粟粒性肺结核粟粒灶表现为三均匀 ,5 7.1 %的病例表现为不均匀。粟粒灶为随机分布结节 ,在间质内主要分布于小叶中心、小叶间隔及胸膜下。较少分布于支气管中心轴。在肺实质内主要分布于肺小叶中心与小叶边缘之间的肺实质内。结论 HRCT能较好的显示急性粟粒性肺结核的粟粒灶分布特点 ,比X线胸片和CT有更高的诊断价值。

Objective To analysis the HRCT appearance of military pulmonary tuberculosis.Methods To review conventional CT and HRCT of 28 cases with military pulmonary tuberculosis.The findings of CT and HRCT in chest were compared.Results 12 cases (42.9%) showed “three ehonogenous' characrestic,16 cases (57.1%) showed no “three ehonogenous' characrestic.The distribution of military focuses were in random,mostly distributed in interlobular center,interlobular septum and subpleural of pulmonary interstitium and peribronchovascular interstitium were fewer.Only the zone between of pulmonary lobular center and lobular edge were distrbuted in pulmonary parenchyma.Conclusion The distribution characteristics of military pulmonary tuberculosis can be better showed in HRCT.