Dad diagnosed with cholangiocarcinoma given 3 to 6 months

Hi i have never posted on here before so appologise for not introducing myself prior to this.

Today my dad was diagnosed with bile duct cancer and given only 3 to 6 months. Wierd thing is he is still riding his bike, earing and drinking.

With chemo they said 6 to 9. Has anyone else had this type of rare cancer. I feel numb and wierd.

 

Many thanks mark