### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
My dad has hep c about 4 years ago he had varaces in his esophagus bust and he almost bleed to death. So niw 4 years later he has been diagnosed with throat cancer. The symptoms have been going on for months tho. His ent dr was saying he can t go through treatment because of his liver. They was going to put him to sleep to do a biopsy and while he would be asleep go ahead and do the breathing tube, he decided against it out is a risk to put him to sleep let alone cut on his throat and not be able to control the bleeding... to sum it up he won t eat cause it hurts he s lost like 30lbs in about 2 months. If they was to succeed in putting a breathing tube and a feeding tube in. What would his quality of life be and how long could he survive with no treatment

### output:

Hi, Thanks for writing in. Sorry to hear the disease progress in your father and praying for his recovery and pain free survival. Throat cancer needs to be staged first when deciding on treatment. There are 4 stages in any cancer and stages 1 and 2 are almost completely treatable. Stages 3 and 4 are difficult to treat. If he is unable to get a chemotherapy session, then he can go for radiation therapy. Radiation works wonders in prolonging the survival of a throat cancer patient. This will kill the cancer cells and any lymph nodes involved in the area of radiation. Chemotherapy might not help him much if his immunity is low, but it can surely be tried. Surgery is a problem if he has bleeding tendency. You can discuss the possibility of giving him radiation and chemotherapy. The breathing tube and food tube are important to make sure he gets his nutrition and keeps his airway open. These is vital functions for his life. In this way a patient can survive for about 12 months to 2 years without any surgical treatment and if the tumor shows response then survival can be even longer.