Welcome to HCM,
Your report of X ray
chest suggest a lesion in right apex the fibro cystic changes of 45 mm such lesion can have various causes like infection of lungs the common cause could be Tuberculosis
, which needs to be ruled out,other possibilities are Fibrosis
,any cystic lesion, even malignancy.
The bronchovascular markings are prominent is due to your chronic smoking
You have to check with medical doctors who checks for employment requirements '
It is important from health point of view you should check with Chest Physician and investigate the cause and treat it accordingly.
One more thing you must quit smoking as it is very bad for lungs.
If tuberculosis is confirmed by other test it can be treated easily.
Please Take Care
Dr.Akhilesh dubey M.D.