Acute interstitial pneumonia

The interstitial lung mainly includes connective tissue, blood vessels and lymphatic vessels. Because the density of connective tissue is sparse, there is a certain gap or cavity between them. The interstitial space around the lung parenchyma-also known as the interstitial cavity: refers to the connective tissue cavity in the alveolar wall that exists between the basement membrane of the alveolar epithelial cells and the basement membrane of capillary endothelial cells. Where Interstitial Lung Disease Occurs. Under normal circumstances, the stroma is composed of a small amount of interstitial macrophages, fibroblasts, muscle fiber cells, and lung matrix, collagen, macromolecular substances, non-collagen, and so on. When lung interstitial lesions occur, the quantity and properties of the above components will change mdash; mdash; activation and participation of inflammatory cells, destruction of tissue structure, proliferation of fibroblasts, deposition and repair of collagen fibers, etc. Histopathological characteristics of lung disease. It should be noted that the infiltration of inflammation and the repair of fibers are by no means limited to the interstitial, but can also be seen in the alveoli, alveolar ducts, respiratory and terminal bronchiole airways.

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