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胸腺在机体免疫调节上占有重要地位,胸腺随着年龄增长而逐渐退化,这是受其它内分泌腺激素分泌增加特别是性腺的影响。急性肺炎时胸腺增大及其在疾病过程中的作用,文献中已有论述,但关于小儿急性肺炎时胸腺缩小的活体测定资料,文献中尚未见到报告。J.Gewolb等在评价新生儿呼吸窘迫综合征的胸部X线改变时提出心-胸腺-胸指数(CTTⅠ),许多学者认为CTTⅠ反映了胸腺大小。作者在小儿活体上测定CTTⅠ,探讨其在小儿肺炎诊断上的意
The thymus plays an important role in the immune regulation of the organism. The thymus gradually degenerates with age, which is affected by the increase of other endocrine gland hormones, especially the gonads. Thymic enlargement in acute pneumonia and its role in the course of the disease have been discussed in the literature, but no literature has been reported on in vivo data on thymus reduction in children with acute pneumonia. J. Gewolb et al. Proposed a cardiothoracic-thoracic index (CTTⅠ) in the evaluation of chest X-ray changes in neonatal respiratory distress syndrome. Many scholars think that CTTⅠ reflects thymus size. The authors measured in vivo CTT Ⅰ in children to explore its meaning in the diagnosis of pediatric pneumonia