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18例因基础疾病和/或药物引起的免疫抑制病人病程中并发肺结核,其X线表现与通常成人肺结核有明显不同:①极易播散,血行播散占全组病例的56％,治疗反应差,支气管播散亦较常见。②血行播散型肺结核有40％病例表现为近似小结节状的软性阴影,疏密不一,有的散在分布,有别于典型粟粒状病变。③浸润型肺结核大多缺乏一般成人肺结核的多形性特点,多呈均匀一致的絮状或片状阴影,肺段分布差异可以不明显。④伴发改变多,22％合并肺门或纵隔淋巴结增大,17％合并胸腔积液。反映了机体免疫机制损害,病灶增殖反应徽弱,病变不易局限化的倾向。
18 patients with underlying diseases and / or drug-induced immunosuppression in patients with pulmonary tuberculosis during the course of the disease, its X-ray findings and normal adult tuberculosis were significantly different: ① easily disseminated hematogenous spread accounted for 56% of the total group of patients, response to treatment Poor, bronchial dissemination is also more common. ② hematogenous disseminated pulmonary tuberculosis 40% of the cases showed similar to the small nodular soft shadow, different density, and some scattered distribution, different from the typical miliary lesions. Most of infiltrative pulmonary tuberculosis lack the pleomorphic characteristics of general adult pulmonary tuberculosis, mostly uniform or uniform flocculent or flaky shadows, pulmonary distribution differences may not obvious. ④ with more change, 22% with hilar or mediastinal lymph nodes increased, 17% of pleural effusion. Reflects the body immune system damage, lesion proliferation reaction weak, the lesion is not easy to limit the tendency.