The feline leukemia status: Cats that test positive for FeLV or FIV have a lower rate of response to therapy, as well as a
shorter average survival time when treated.
I can't recall seeing a study that gave a median or
average survival time for this condition but my impression is that you are basically correct in your assessment of the how well steroids work.
Similarly, 29 patients had low TS levels and significantly
longer average survival times (36 months) than patients with high TS levels (15 months).
Glioblastoma is the most aggressive type of tumor that originates in the brain and with no curative treatments currently available,
the average survival time for patients ranges from 15 to 18 months.
Usually, treatment would require whole - brain radiation which is extremely toxic and
the average survival time is just 3 - 6 months from diagnosis, with fewer than 20 per cent of patients surviving more than one year.
THE virus that helped eradicate smallpox is now working its magic on liver cancer, trebling
the average survival time of some people with the disease.
Other protocols include chemotherapy given once every 2 or 3 weeks (either oral or IV), although remission rates and
average survival times may be decreased.
Cats with lymphoma who are not treated with chemotherapy have
an average survival time of 4 weeks once the diagnosis has been made.
The most common form of lymphoma seen in dogs progresses rapidly and if untreated,
the average survival time is about two months.
The average survival time for a dog with Cushing's disease is about two years, but this statistic does not mean that Cushing's causes death.
These cats show
an average survival time of 9 - 12 months, with the initial response to treatment often giving an indication of survival time.
Mediastinal lymphoma in cats with feline leukemia carries a poor prognosis, with
an average survival time of 3 months.
Unfortunately,
the average survival time even with treatment is only one year, and most dogs succumb to the disease within two years.
One study shows
the average survival time of dogs with enlarged heart is anywhere from 6 months to 12 months, with very few cases where a dog survives 1.5 years (source).
After removal of the spleen,
the average survival time is about three months.
The average survival time with chemotherapy is 3.5 months for virus positive cats and 5 months for non-viral infected cats.
In one study of dogs that had anamputation for a histiocytic sarcoma affecting a joint,
the average survival time was six months.
Another study showed
an average survival time of 391 days, for dogs with tumors located in a joint.
If the tumor was not in a joint,
the average survival time was 128 days.
If a dog has a single colrectal carcinoma
the average survival time is 32 months.
Dogs receiving amputation alone (no chemotherapy) have
average survival time of 3 - 5 months1.