Our expert says:
Scars in the lung can develop due to previous infections, even healed TB lesions. A granuloma is growth of tissue stimulated by infection or injury and consists of inflammatory cells. One can get granulomas anywhere in the body and due to different causes. TB typically causes granuloma in the upper lobes of the lungs. If you think that you could have had contact with anybody with active TB, or you have a low immunity due to HIV, using cortisone for asthma, or have any chronic blood disease, it may be worth your while to have a TB PCR blood test to exclude TB. Otherwise a 3 month follow up Chest x/ray will be sufficient.
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