Cat showed of abdomen showed lung nodules

[copyman]

i went for a routine cat scan of abdomen because i have hepatitis c. results were ok for the HCV but 2 small nodules were found on the lung. Besides the other abdomen stuff here is the exact wording from the report:
Findings, "there is a 4mm pleural based nodular opacity as well is a 2.5mm parenchymal nodular opacity in the right lower lobe"

Impression, "2.5mm and 4mm right lower lobe nodular opacities. Per Fleischner society criteria, if the patient has known history of smoking, malignancy, or risk factors for malignancy, then dedicated chest CT is advised. If no such history exists, no followup advised."

Im very worried because i smoked for 25 years but quit 6 yrs ago after a bout with bronchotis. Im 49 and in fairly good shape with the exception of some symptoms from the HCV. I will make appointment with a pulmonanry doc but in the meantime i was trying to get some advice to put mind at ease. how bad is this? is it always cancer? what are the odds? what would show in bloodwork from cancer?  from what i have read so far there can be other causes and was curious how common this was becasue of what the report said about no followup advised for a patient with no history? sorry to be so long with this post and thank you in advance.

[nlighten]

some  of what you wrote i know to be old scars, from pumonia or things from years ago... let me know, im interested to find out what you find out.......

[onthegoma]

Thanks for the help. My problem in locating info was in searching for "MICRO-plasma"  and not MYCOplasma. :-)