Thanks for your query.
I wish you had quoted the exact words of the X-ray report. Further, you have not mentioned if you have additional problems- apart from local pain overlying the 'blob'- such as low grade fever
, weight loss
, loss of appetite at present or sometime in the past.
However, from the brief information provided, the 'blob' may be a lesion (probably old, but a fresh lesion cannot be ruled out) in the right lung or in the cavity which surrounds the right lung.
I feel that you should get a CT/MRI
scan done, which will throw light on the nature of the lesion. Please consult your treating doctor who will take necessary actions.
Dr. Rakesh Karanwal