Hello,
Thanks for the query to H.C.M.. Forum.
Let me explain so that you could understand whole thing.
We will discuss only about right upper lobe of lung ( as in your case).
Normally there is air in lungs on both side and this visualize as mild black color shadow in lungs.
When a person got infection ( pneumococcal or
pneumonia ) his lung become white color ( due to collapse as it visualize in lung) .
After the treatment of pneumonia this portion ( infected by pneumonia) resolve and become normal as rest of lung.
Usually this treatment is of 2 to 4 weeks depending upon the nature of causative organism.
In your case one year back definitely you were a patient of pneumonia , for which you didn't take treatment .
This infection got tubercular lesion and after one year this shadow came in your lung ( when you got
cough ) .
I am sorry to say that infiltration ( old tubercular lesion ) will visualize in lungs and you can't do any thing.
Now , no doubt you are free from
tuberculosis but old lesion will visualize in lung.
Good luck. Dr. HET