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 challenge is figuring out which nodules are or will become cancer. All lung cancer starts with a nodule but 95% of lung nodules are not cancer. Nodules that are not cancer may be the result of a bacterial or fungal infection in the past that causes inflammation and scarring in the lungs.