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Ill defined opacity on chest xray can be anything ranging from simple consolidation ( bacterial, tubercular, fungal) to pulmonary infarction
, cancer etc. Non- benign etiology in the report suggests cancerous growth. And it must be ruled out on CT scan
thorax because it is fairly common in elderly smokers.
If it is suspicious on CT too, you may go for CT guided biopsy/FNAC of the nodule and get it examined by a histopathologist. The histopathological report will further guide the treatment.
The staging of the disease will be confirmed by the lymph
node status on the CT scan and also the extent of the organ involvement other than the lung.
Meet your doctor with the Ct scan report .....