Mid-Sized Barns. Mid-Sized Barns-from 7 to 15 stalls. Some mid-sized horse barns are private, but often a mid-sized barn has to work for a living. . . as a boarding facility, a training barn, or the center of a breeding operation.
This can cause scarring. Asbestosis, caused by exposure to asbestos, causes scarring and might lead to lung cancer. Silicosis, caused by the inhalation of silica dust, will also cause scarring in the lungs. Mining of gold, lead, copper, zinc, iron and anthracite can result in silicosis if the proper precautions are not taken.
The organs most affected by sarcoidosis are the lungs. Enlarged lymph nodes at the place where the lungs meet the heart or to the right of the windpipe (trachea) may be seen on a chest x-ray. Sarcoidosis causes inflammation in the lungs that may eventually lead to scarring and the formation of cysts. Fortunately, such progressive scarring occurs infrequently. Occasionally, the fungus Aspergillus can settle in (colonize) the lung cysts, grow, and cause bleeding.