Reticular fibers in lung adenocarcinoma pathology report means that the patient has interstitial lung disease. Reticulated fibers in lung adenocarcinoma pathology report indicate that the patient has grid-like fibrous changes in the interstitium of the lung, such as idiopathic pulmonary fibrosis. The grid-like fibrous changes may be caused by the thickening of the patient’s interstitium, the presence of fibrous components in the interstitium, etc. In order to clarify the cause of the disease the patient should also under the guidance of the doctor for further examination. In general, if the patient’s lungs only have mesh fibers in certain places or very few mesh fibers, it will not have a great impact on the function of the lungs, but if the mesh fibers in the patient’s lungs are more serious, the patient may experience chest tightness, shortness of breath and other uncomfortable symptoms, and should go to the hospital in time to consult the doctor for appropriate treatment.