Can chemo or radiation for lung cancer cause brain damage?

Chemo brain. Chemo brain has been studied fairly well and in fact at this past years national conference a seminal study was presented that notes that chemo brain can begin even before a patient has received any chemotherapy. Thus the cognitive impairment begins from the traumatic stress caused by the diagnosis and hearing the words chemotherapy and cancer. This is a form of ptsd. Some ctx makes it worse.
Maybe. Radiation to the brain can affect brain function, but radiation directed to the chest or elsewhere should not affect the brain. Some reports link chemotherapy to cognitive changes ("chemo brain"), but these effects have not been studied well.