Hi and welcome to HCM.
This usually indicates non active tubercular lesions so do you remember any tuberculosis
infection in your life? It is important that ther eis no sign of active disease, but you should consider antituberculotic treatment with your doctor if the infection can be confirmed. But if you dont have any symptoms you shouldnt be worried because it wont affect your life. It would be better if you stop or reduce smoking
. Wish you good health.