welcome to HCM.
a suspicious opacity in right hemithorax is abnormal.
there are many causes for it. may be cancerous or non-cancerous like a cyst, calcification , fungal infection
it is impossible to comment without seeing the Xray.
can you pl. load it using the upload feature of healthcare magic website?
you may need a CT scan
of the thorax and if suspicious , a biopsy
if amenable to it.
take care and keep me posted on your progress.
Good luck !