Hi,
Welcome to HCM,
Your
X ray is abnormal that is showing
fibrosis and radiopacity left upper zone.
It is always necessary to correlate these finding clinically.
One of the common cause is
pulmonary tuberculosis this is active or old healed one to be decided by history and other tests in blood.
If you have been treated for PTB in past then healed fibrosis persists.
There are other possibilities according to X ray includes,Lung collapse, Fibrosis, pulmonary, Interstitial lung disease, and
Atelectasis.
Please visit Physician who ordered X ray to correlate clinically and to treat your condition if treatment is required.
Seriousness depends on cause if it is due to tuberculosis and active then treatment is required for 6 months.
If old healed one then no treatment and other condition need treatment according to cause.
Take care
Good Luck.
Dr.Akhilesh Dubey M.D.