I, too, had the pulmonary densities. My RO said that it is very common to get scar tissue of the lungs from being in the field of radiation. My pulmonary doc put me through a PET scan and the radiologist said that the densities do not look like cancer. Although my docs are keeping an eye on them, everyone has concurred that the densities are indeed scar tissue from radiation effects. I still have my peg tube in as a safety net for nutrition, but I can eat by mouth somewhat. However, like you, I don't have much of an appitite to eat. I hope that changes for both of us! Good luck to you!