my father is 88 and has  food pipe cancer,stent has been put,doctor advice that we should just  leave it alone so that he can have quality life for few months.any advice to make his suffering minimum at latter stage. what type of diet he should take.
The advice that you have been given, to not receive any anti-cancer treatment, is probably because of your fathers age or the stage of the tumor or both. Either way, the cancer is going to progress with time and block the stent gradually. When this happens you can switch from solid to semi-solid and then to liquid diet, both with adequate protein to maintain his body requirements. Another option is to get another stent placed within this stent if possible when this one gets blocked. That will keep him eating for a little while longer.