I am assuming that your father is in a good general condition and does not suffer from any comorbid conditions like diabetes, high blood pressure
, heart disease
, etc. Also, since you have not mentioned it, i assume that the cancer had not spread to any other body part and that the biopsy report shows adenocarcinoma ( a type of cancer). If the margins of resection in the biopsy report are free from tumor then i would suggest your father to undergo further treatment in the form of chemotherapy
. Chemotherapy is a type of cancer treatment in which we give special injections into a vein. These injections then kill the remaining tumor cells in the body although they have a number of manageable side effects. Since your father has node positive disease
, further chemotherapy is mandatory. However, if the biopsy report says that the margins of resection are involved by the tumor, then i would suggest a course of radiation
therapy alongwith low dose chemotherapy (to increase the effect of radiation) followed by full dose chemotherapy. All this treatment should preferably be undergone at a dedicated cancer care unit.