这个词是什么意思？
A diverse group of lung diseases that affect the lung parenchyma. They are characterized by an initial inflammation of PULMONARY ALVEOLI that extends to the interstitium and beyond leading to diffuse PULMONARY FIBROSIS. Interstitial lung diseases are classified by their etiology (known or unknown causes), and radiological-pathological features.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D017563 · MeSH 2026。
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