1. right lower part of my lung had a big mass, was biapsiy and came positive of non small lung cancer. A surgery was peroformed and after few months the petscan, showed couple of my luymphnotds, on the same rightside of my lung was effect, so a radiation and chemo theropy were orderd and i went threw the treatment, however at the end of my treatment all my blood counts,white,red and platlets were verylow, and that caused a heavy cold,cough and spitting of blood. i was admitted hospital and given platlets and bloodtransfusion, and a scan was done, it showed a suspicious inflimation or something else excatley where i had my surgery, so iwas putting on heavy antibiatics,etc and i left hospital after being stable, where no more blodd coughing,spitting, fever,etc, and the doctor orderd a petscan to be perorfmed after 3 weaks,
the result came today, it shows the lymphnodes are clear,and everywhere in my body is clear,however some unclear activity that showed around surgery is still there

That was a rather rough course, I hope you are feeling better now.

The changes may simply be scar tissue from the healing surgical site. PET scan picks up biological activity, so active healing would show up. Keep up regular follow up with your doctor, however, so if anything changes you can get a jump on it. Good luck.