Originally Answered: scar in the lungs, cancer or tuberculosis?
Lung scarring can result from a variety of infections, Occupational exposures; environmental exposures, and pulmonary diseases.
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.
1) Pulmonary Fibrosis -Pulmonary fibrosis is a chronic disease causing inflammation and fiber-like scarring of the alveoli (air sacs) and interstitial tissues of the lungs.
20 Asbestosis- can cause lung scarring and lung cancer
4) Pleural thickening
5).For the past 7 decades, scars have been thought to play a causal role in lung cancer because lung cancers often arise in proximity to scar tissue.
6) Interstitial lung disease (ILD)-
Interstitial Lung Disease (ILD) is a general term that includes a variety of chronic lung disorders. When a person has ILD, the lung is affected in three ways. First, the lung tissue is damaged in some known or unknown way. Second, the walls of the air sacs in the lung become inflamed. Finally, scarring (or fibrosis) begins in the interstitium (or tissue between the air sacs), and the lung becomes stiff. Fibrosis, or scarring of the lung tissue, results in permanent loss of that tissue's ability to transport oxygen
7) Connective tissue or collagen diseases such as rheumatoid arthritis and systemic sclerosis
8) Hematological diseases, including systemic lupus erythematosis,
9) Rheumatoid arthritis
12) Sjogren's syndrome
16) COPD- Chronic Obstructive Pulmonary Disease
Other diseases that can cause pulmonary fibrosis:
Systemic Lupus Erythematosis
Grain handler's lung
Mushroom worker's lung
Detergent worker's lung
Maple bark stripper's lung
Malt worker's lung
Paprika splitter's lung
Bird breeder's lung
Hermansky Pudlak Syndrome
Infections. These include viral infections such as cytomegalovirus
Drugs-chemotherapy drugs, medications used to treat heart arrhythmias and other cardiovascular problems, certain psychiatric medications, and some antibiotics.
Fibrosis or scarring in the lungs may increase the risk for lung cancer
Corticosteroids are the drugs which are usually administered in an attempt to stop the inflammation and thus stop the progression of the disease.