嗜酸细胞已被识别百余年,但其在人体健康和疾病状态时的确切功能尚不明瞭。虽然如此,嗜酸细胞增多若与肺部疾患同时出现,对病因、发病机制、诊断及治疗均有重要意义。本文就以下数方面对这种意义进行复习:1)嗜酸细胞结构及功能的现代概念;2)嗜酸细胞在阻塞性肺疾病中的意义;3)伴有嗜酸细胞增多症的浸润性肺疾患。嗜酸细胞的结构和功能形态学和分布嗜酸细胞来自骨髓,为双 Eosinophils have been identified for over a hundred years, but its exact function in human health and disease states is not known. However, if eosinophilia occurs concurrently with pulmonary conditions, it is of great importance to etiology, pathogenesis, diagnosis and treatment. This paper reviews the significance of the following aspects: 1) the modern concept of eosinophil structure and function; 2) the significance of eosinophils in obstructive pulmonary disease; 3) invasiveness associated with eosinophilia Lung disease. Eosinophil structure and function Morphology and distribution Eosinophils are derived from the bone marrow and are double