Thank you for your reply, I don't have access to the biopsy report it is with my vet, but I will try and get a copy, We were referred to The Royal Vet Hosp. Potters Bar. We are in England.
We were told this was a cancerous tumour, and the stain test was to make sure it wasn't Myeloma, although suspected..
We do not want to put our girl through Radiotherapy if the outlook is poor. We would rather she had a good few months with no sickness or burns/ulcers if there wasn't a chance of a cure.
Pointless having more time if that time is spent in pain. At the moment she is eating/playing and does not appear to be in any pain.