Lung nodules are also known as shadows on chest x-rays. These can indicate a variety of conditions and diseases. A lung nodule can be the result of an infection, either bacterial or viral, exposure to chemical substances or an autoimmune disease. It can also indicate a malignancy is present. It is important to have these findings evaluated, to allow proper medical diagnosis and treatment.
. Additional information on lung nodules can be found at: http://www.mayoclinic.com/health/lung-nodules/AN01082
