Sorry to hear of your Dad’s diagnosis. I lost my Dad to Cholangiocarcinoma a week before Thanksgiving and only two weeks after getting the bad news. We were able to get in touch, and a second opinion from Dr. Michel Kahaleh from the University of Virginia. He specializes in spyglass lasar therapy. I don’t know if it is the same as Photodynamic therapy. He is worth contacting as he welcomed looking at my Dad’s file, CT’s and records and got back to us within 24 hours. He was wonderful. Unfortunately for us my Dad was not a candidate. Perhaps your Father will fair better. All the best. God Bless. Don’t give up.
My thought and prayers are with you and Marc. My dear Dad died from bile duct cancer that spread to the liver. He too was late in presenting symptoms. We did contact a world renowned specialist at the University of Virginia. He uses photodynamic therapy in treating the cancer. He was wonderful in speaking to us. It may be an option for you. Google him.
Also, keep the faith. Prayers do work.