Is lung hypodensity a tumor?

Lung hypodensity may be neoplastic lesions, but it is not excluded that lung hypodensity may be caused by non-neoplastic lesions, because lung interstitial tissue will show pathological changes or even necrosis after infiltration and diffusion of cancer cells or benign tumor cells, so the density of lung lesions will be lower than that of other normal cells. In addition, viral pneumonia, tuberculosis, pulmonary nodules and other non-tumor diseases may also cause lung interstitial tissue to be stimulated by persistent inflammation, and show pathological density changes. Therefore, it is necessary to go to a regular hospital for more comprehensive examinations, such as lung CT examination, lung biopsy, bronchoscopy, etc., to find out the specific cause of this symptom, and then receive symptomatic treatment.