Thanks for your question on Health Care Magic.
I can understand your situation and problem.
Scar tissue in lungs is permanent.
It will remain same and will be seen as it is life long.
Since it is not a disease or infection, no treatment is available or required for it.
For your visa problem, we need to prove that this lesion is inactive and non infectious.
And for this you need to
consult pulmonologist and get done
1. CT thorax with Contrast
2.
Bronchoscopy with BAL (
bronchoalveolar lavage) analysis.
If both these are negative for infectious disease than you can definitely argue with visa authority about not having active, infections disease and your lesion on
x ray is old, healed, inactive scar lesions.
Hope I have solved your query.
Wish you good health. Thanks.