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肺结核是一种慢性肉芽肿性疾病 ,影像学特征为小结节影、气腔与钙化灶形成 ,而病理学改变为干酪样肉芽肿或干酪性肺炎 ,病变过程中多有纤维化和萎缩性钙化形成倾向。且发病部位多以两上肺叶 (肺尖 )或两下肺叶背段区域为主。如发病部位是在两肺下叶等影像诊断有一定困难、且需
Tuberculosis is a chronic granulomatous disease characterized by small nodules, air cavities and calcification, pathological changes to caseous granulomas or caseous pneumonia, and fibrosis and atrophy in the course of the disease Calcification formation tendency. And the incidence of more than two lung lobes (apex) or the lower lobes of the two main areas. Such as the incidence of the lower lung in two lung imaging diagnosis has some difficulties, and needs