It has always been attributed to radiation and showed up on my fist scan after chemo/radiation ended. At first they said it would go away. It didn’t, however I have good lung function, no cough. So I don’t need to see pulmonologist unless I develop symptoms For a time they were suspecting radiation induced lung injury but no longer. I found one study of breast cancer patients who had a lung scan sometime after radiation. They found a group like me who looked like they had RILI but were otherwise asymptomatic.

If you have pulmonary symptoms the pulmonologist should have an idea if radiation induced lung ng injury is at hand If you had pulmonologist nary symptoms before, radiation may not be a factor?