Help! please , my hamster has malignancy!?

f you read my previous question i didnt know what was wrong with my hamster she had these 2 balls that were different colored and just now when i go to check i see a red dot bleeding :( its malignancy , can someone please tell be How a hamster gets malignancy, if my hamster will last a week before i take her to the vet , and if theres vets in surrey b.c that take hamsters someone please please help me im worried sick i cry most of the time , never been so deressed if i can get and answer before tomorrow or tommorow if she survives or even now please tell me :(