Hi Sascotty,
It sounds like the immunotherapy treatment has gone very well for your dad and the only area concern 6 months on is the lung. Stable bloods and scans seems reassuring too and it's normal for your dad to be worried about his appointment…
Hello Sally22,
It won't be too long now until your operation to remove the affected lymph nodes and it's totally understandable that you are feeling worried that it might spread before the operation - do talk to your doctor or specialist about these…