Thanks for your question on Healthcare Magic. I can understand your concern. Your current x rays are showing old, healed fibrotic lesions. Chest x ray can not clarify about activity of the lesion, means is it active infectious lesions or old fibrotic lesions. So second radiologist comments as activity undetermined. Any lung infection in the past when heal with treatment, produce fibrosis. And this fibrosis remains as it is through out the life. For your visa purpose, we need to prove that these lesions are inactive, scar lesions. So consult pulmonologist and get done CT thorax and bronchoscopy with BAL (bronchoalveolar lavage) analysis. If both these are negative for infections, you can argue with visa authority about having old, inactive, fibrotic scars. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks