What does interstitial fibrosis mean in the lower lobes of both lungs?

The so-called pulmonary interstitial is composed of alveoli. The support between alveoli and alveoli is called pulmonary interstitial. There are blood vessels, lymphatic vessels, and supporting structures in the pulmonary interstitial fibrosis of both lower lungs. The images often suggest fine reticular changes, honeycomb-like changes, or string-like changes. Early stage can also be ground-glass-like changes. Common causes such as childhood viruses, lung infections, can form pulmonary interstitial changes. In addition, patients who smoke for a long time and smoke for a very long time can also form pulmonary interstitial changes. There are also occupational exposure, frequent exposure to dust, respiratory allergies, and pulmonary interstitial changes. There are connective tissue diseases, which often can form lung infiltration and can cause pulmonary interstitial changes. There are also drugs. Taking drugs can also affect the formation of pulmonary interstitial; Some treatments, such as radiation therapy, can cause lung damage and interstitial lung changes, but some patients are idiopathic, that is, no cause can be found, called idiopathic pulmonary interstitial fibrosis.