Chemical worker's lung -- Lacquer: Inhalation of a lacquer (which contains isocyanates) in an occupational setting can cause various lung symptoms. The severity of symptoms varies depending on the duration of the exposure. The lung symptoms result from the body's immune system reacting to exposure to the chemical. Chronic exposure can lead to progressive lung symptoms which can gradually lead to symptoms such as weight loss and eventually lung scarring and possibly even respiratory failure in severe cases. Acute exposure results in symptoms such as fever, chills, shortness of breath and body aches.
Lung scarring: Damage to the lung tissue from and cause can cause scarring of the lung tissue. Small scars generally cause no problems but large or widespread scarring can affect breathing. Causes of lung scarring include pneumonia, lung infections, cystic fibrosis, asbestosis, silicosis and sarcoidosis and tuberculosis. Excessive lung scarring can lead to thickening and stiffening of the lung tissue which can make breathing more difficult. Scar tissue can also be a result of damage due to cancer.