I have localised small cell lung ca which was diagnosed mid August. I am currently in the 3rd cycle of 5 cycles of chemo. After this I will be given 15 sessions of radiation to the lung and PCI (prophylactic cranial irradition). Because small cell ca spreads very quickly and the first site is often the head PCI is given to hopefully zap any microscopic cells that may be present. I am very nervous about this treatment because of possible side affects like intellectual impairment and memory loss. I would be interested if anyone else has had this treatment and what side effects if any they have experienced.