I can't say anything about it but I guess it is not a cancer but still as the matter of fact this is a sensitive case so, you should consult a doctor and go for complete lung tests.
Could a infiltrate in my lung be cancer?
My cx-ray today showed "left cx-ray lobe infiltrate, suspicious for pneumonia". Could I have had walking pneumonia for 9 months and only had the cough intermitently. I thought I had bronchial asthma