 |
高倍镜下支气管哮喘可见大量嗜酸性粒细胞，可见明显的粉红色嗜酸性颗粒。哮喘有2种临床类型，它们彼此相关。
外源性哮喘:它与Ⅰ型超敏反应（变态反应）有明显联系，哮喘突然发作与吸入变应原有关。最常在童年发生。
内源性哮喘:哮喘发作与呼吸道感染有关，暴露于严寒，锻练，压力，吸入刺激物，药(如阿斯皮林)。成年人最常受其影响。 |
At high magnification, the numerous eosinophils are prominent from their bright red cytoplasmic granules in this case of bronchial asthma. There are two major clinical forms of asthma that can overlap.
Extrinsic asthma: there is typically an association with atopy (allergies) mediated by type 1 hypersensitivity, and asthmatic attacks are precipitated by contact with inhaled allergens. This form occurs most often in childhood.
-
Intrinsic asthma: asthmatic attacks are precipitated by respiratory infections, exposure to cold, exercise, stress, inhaled irritants, and drugs such as aspirin. Adults are most often affected.
|
