Has anyone else had the post-treatment PET show new ground glass opacities? We were encouraged to follow up with our pulmonologist. His initial review of the report led him to believe that this is possibly a response to radiation. We have requested the actual scans for him to be able to review and he has said until he does that he cannot say for certain what his final recommendations would be. We are just interested to know if this has been a finding for anyone else?

Ground glass opacity (GGO) is a nonspecific finding common CT scans after treatments that indicates a partial filling of air spaces in the lungs by exudate or transudate, but seldom as an indicator or a metastasis of cancer. Here is a good article from the journal of radiology. http://www.ajronline.org/doi/pdf/10.2214/ajr.160.2.8424326