Can the diagnosis of interstitial pneumonia be confirmed with shortness of breath, cough symptoms, routine X-rays, CT, etc.? No! First of all, shortness of breath, cough and sputum are not specific for interstitial pneumonia, these symptoms can appear in a variety of other diseases, such as what is often referred to as chronic lung disease, emphysema and cardiac insufficiency; secondly, conventional chest X-rays are of limited value in diagnosing interstitial disease, and even general chest CT is somewhat incompetent for interstitial lung disease, and generally requires a In addition to typical idiopathic pulmonary fibrosis, symptoms and imaging findings are not sufficient to confirm the diagnosis of interstitial pneumonia; finally, the diagnosis of most interstitial pneumonia requires pathological support, but at this point the pathology is not the gold standard as one might think, the pathology is only a basis, and the diagnosis requires clinical-pathological-imaging The diagnosis requires clinical-pathological-imaging integration.