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Hemangiosarcoma in Dogs | Symptoms and Treatment

A dog at the vet's office.

Hemangiosarcoma in dogs is an aggressive form of cancer that grows in the blood vessels. Knowing the signs and treatment options is imperative for the dog’s long-term health outcomes. 

What is Hemangiosarcoma

Hemangiosarcoma is a type of cancer that starts in the blood vessels and can affect areas like the spleen, liver, or heart. Because it often doesn’t show symptoms until it’s advanced, it may be difficult to detect in its early stages. However, early intervention can give the dog better possible health outcomes.

Causes

The causes of hemangiosarcoma are not fully understood, but some factors can increase a dog’s risk. Older dogs and certain breeds, like German Shepherds, Golden Retrievers, and Labrador Retrievers, are more commonly affected. Previous injuries or environmental factors might also play a role. Awareness of the symptoms and close monitoring are crucial.

Symptoms

Detection of the early symptoms is crucial. Several may appear. The dog may experience weight loss despite eating a healthy amount. They may experience increased appetite, as dogs may eat more during periods of discomfort. They may be unusually restless or demonstrate bursts of energy. Weakness or lethargy may also be observed. Finally, they may develop pale gums, which can indicate internal bleeding or anemia.

Diagnosis

Diagnosis of hemangiosarcoma may involve several diagnostic tools. Blood tests can check for anemia or other irregularities. X-rays, ultrasound, or CT scans can help find and assess tumors. Biopsy can be used to sample the tumor for observation under a microscope to confirm the diagnosis.

What are the Treatment Options for Hemangiosarcoma in Dogs?

Treatment can vary based on the tumor’s location and the dog’s overall health. Options often include surgery to remove the tumor, medication including chemotherapy to manage the disease and prevent its reoccurrence, and dietary changes to support the dog’s overall health during treatment.