Interstitial (in-tur-STISH-ul) lung disease describes a large group of disorders, most of which cause progressive scarring of lung tissue. The scarring associated with interstitial lung disease eventually affects your ability to breathe and get enough oxygen into your bloodstream. ISL can be caused by long-term exposure to hazardous materials (i.e. asbestos) and having an autoimmune disease (i.e. rheumatoid arthritis).
Symptoms include shortness of breath at rest or aggravated by exertion and dry cough.
Interstitial Lung Disease. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/interstitial-lung-disease/symptoms-causes/syc-20353108