I am SO sorry you are going through such a horrible time, Angelblue. I hope you have friends and family to lean on during this? God is always with you too!
Surely there are many things that can be done for a tumor? How can those doctors say it's cancer and that he's going to die from it? They don't know if it's cancer or not until, as James says, a biopsy is done and results are in! Even then, there is still hope, still options.
You will have to stay strong for your hubby and stand up for him against the 'death doctors' there! Once you know for sure what you're dealing with, then you can begin to search the all options!
May God give you peace, mercy and grace through this time and may He be your constant comfort. Praying for your husband's healing and wellness soon!