In dogs and cats, it’s called hemangiosarcoma ... right atrium/auricle of the heart, or liver. Here’s a look at the typical symptoms, treatment, and outlook for dogs. Researchers don ...

Researchers have found a very high prevalence of Bartonella bacteria in tumors and tissues - but not blood samples - taken from dogs with hemangiosarcoma, a cancer of the blood vessels ...

tumor that usually develops in the spleen but can also first appear in the heart, liver, skin, etc. Hemangiosarcoma accounts for approximately 80 percent of all tumors in dogs' spleens ...

According to the Morris Animal Foundation, hemangiosarcoma is a deadly canine cancer that can strike without warning. It most commonly affects dogs like Moses who are middle-aged or older and male.