My 6-year old basset hound had a Mast Cell tumor (grade 3) tumor on her hind leg. Due to its location, it could not be completely removed. The vet has determined from lymph node biopsy that it has at least regionally spread. Further lymph node tests and a marrow biopsy are scheduled. If they should show no sign of the cancer, one option is amputation. My concern is that I will only buy her a few more months due to the aggressive nature of the tumor. Is it possible/probably for a dog to survive grade 3 mast cell beyond a year or so?
Thank you in advance for any help you can offer.