婴幼儿粟粒型肺结核其临床表现与婴幼儿肺炎极为相似。本文通过三例婴幼儿粟粒型肺结核误诊为肺炎分析发现,误诊原因为临床医生对粟粒型肺结核的警惕性不高,对患儿接触史的重要性及临床体征认识不够。 例1:男,住院号:950198,4/12岁,间断高烧月余。曾在多家医院按肺炎治疗,效差。求治我院,查体:体温38.2℃,心率118次/分,体重5kg,心肺(—)。实验室查:WBC:10.2×10~9/L,N:0.44,L:0.56,ESR:23mm/时,结核抗体:阳性,结核菌素试验。(+),PCRTB DNA:阳性。影像学:两肺均匀布满粟 Infant miliary tuberculosis and its clinical manifestations are very similar to infants with pneumonia. In this paper, misdiagnosed pneumonia as three cases of infants with miliary tuberculosis found that the reason for misdiagnosis is that clinicians are not vigilant against miliary tuberculosis and their understanding of the importance of the history of exposure to the patient and their clinical signs are not enough. Example 1: male, hospital number: 950198, 4/12 years old, intermittent high fever more than a month. In many hospitals according to pneumonia treatment, poor effect. Treatment of our hospital, physical examination: body temperature 38.2 ℃, heart rate 118 beats / min, weight 5kg, cardiopulmonary (-). Laboratory tests: WBC: 10.2 × 10 ~ 9 / L, N: 0.44, L: 0.56, ESR: 23mm /, TB antibody: positive, tuberculin test. (+), PCRTB DNA: positive. Imaging: two lungs evenly covered with millet