概念所谓弥漫性广泛细支气管炎,即包括终末细支气管的呼吸性支气管区域的慢性炎症,弥漫性地分布于两肺,呈现严重的呼吸功能障碍。其形态学表现为细支气管及其周围炎,可分2型:①阻塞型:由于肉芽组织引起阻塞。②壁内增殖型:淋巴滤泡增生,明显的圆形细胞浸润。肺剖检所见:肺切面可见散在的小斑点,此乃泡沫细胞堆集于呼吸性细支气管区域所致,呼吸性细支气管疤痕收缩的部位,可见黑色炭末沉着,其近端细支气管轻度扩张。气腔、肺泡正常,无气肺和纤维化。呼吸性细支气管区域,是肺泡管及肺泡即肺实质直接移行的中间区域。此处之炎症,至 The concept of diffuse widespread bronchiolitis, a chronic inflammation of the respiratory bronchial area that includes the terminal bronchioles, is diffusely distributed in both lungs and presents with severe respiratory dysfunction. The morphological manifestations of bronchioles and their surrounding inflammation, can be divided into 2 types: ① obstructive: due to granulation tissue caused by obstruction. ② proliferative wall: lymphoid follicular hyperplasia, significant round cell infiltration. Pulmonary necropsy seen: small section of the lungs were scattered spots, this is the accumulation of foam cells in the respiratory bronchioles caused by respiratory syringomyelia scar contraction site, showing the black charcoal calm, the proximal bronchioles mild expansion. Air cavity, alveolar normal, no air and fibrosis. Respiratory bronchioles region, is the alveolar and alveolar pulmonary parenchymal migration of the middle area. Here’s the inflammation, to