I was wondering if anyone has dealt with adrenal cancer? My Rae (14 months) was rushed to the vet with a HR over 200 and it was discovered her BP was also very high and her potassium was low. After multiple testing to rule out Addisons, Cushings, thyroid disease, diabetes, etc, etc .. the vet feels almost certain she has adrenal cancer. This disease has a median age of 11 years and from what the vet says - is very rare. This all happened toward the end of May and she is now taking potassium tabs and phenoxybenzamine which has lowered both her HR and BP (to 110). Any comments would be most appreciated. I am still in a state of shock! Thank you.