what does this mean?

my husband was a former smoker. he has went through 6 mo. of chemo for stage 4 colon cancer with it spreading to his liver. my question is he just recently had a c-scan for evaluation. the report for his lungs concern me because his doctor did not explain this ecept that he might have a infection but listened to his lungs. here is what it says . there are small scattered foci of subpleural ground glass opacities both upper and lower lobes.

[HeinrikMD]

Hi,

The ground glass pattern raises concern that those nodules are malignant. The best way to interpret a scan though, is via comparison with the previous scans. If those nodules were already present at the start of the chemotherapy, then it wouldn’t likely be of any particular concern at the present. Discuss your anxieties with your doctor. Some patients may require some more chemotherapy with a different set of drugs if there is progression of the cancer or if the symptoms are attributed to the cancer. Stay positive.  

[trumpet05]

thank you for your response. It helped us alot in deciding what questions to ask. when he saw the dr. affter the c-scan he couldnt find he last c-scan he got before starting chemo. but again thank you for your input.