Joy---my treatment is all palliative--but the chemo shrunk my primary by more than 50%, which I was told was pretty stunning and the best possible result.
I think I now have 3 new metastases in my neck--but yesterday surgeon said if biopsy comes back positive, I may well be offered palliative RT.
I've just taken my pain meds and am smiling through 'palliative'.
Your dad may well be absolutely fine and everything seems to be 'under control' and looked after right now.
Take care,
Brenda

Brenda in UK--Diagnosis 30/5/07--undifferentiated carcinoma in right jawbone and muscles. Stage 4
6/7/07--new diagnosis primary is in lung. Finished 4cycles of palliative carboplatin/gemcitabine
therapy September 07
Now dying to live!