肺泡微结石症为罕见的肺部疾病,在X綫上呈现为粟粒状播散损害,若不加注意,往往误诊为粟粒型肺结核,最初于1918年由Harbitz报告,1933年Puhr始命名为肺泡微结石症。Sosman等于1957年总结了文献报告的21例,其本人又报告了确定诊断的23例,资料较为全面,以后国内国外均有病例报告,有的通过X綫诊断,有的通过活体组织诊断。本病的发病机制至今尚不够明确,其病理特点为 Alveolar microlithiasis is a rare pulmonary disease that presents as a miliary disseminated lesion on the X-ray. If not noted, it is often misdiagnosed as miliary tuberculosis, first reported by Harbitz in 1918 and named after Puhr in 1933 as alveoli Microlithiasis. Sosman et al. Summarized 19 literatures in 1957 and reported 23 cases of definite diagnosis. The data were more comprehensive. Cases were reported at home and abroad later, some were diagnosed by X-ray, and some were diagnosed by living tissues. The pathogenesis of this disease is not yet clear enough, its pathological features