Hemangiosarcoma Flashcards
What is the main form in which a hemangiosarcoma presents in a dog?
Splenic tumor
What is the median age of dogs affected with hemangiosarcoma?
9-10.5yo
Which breeds are most commonly affected with hemangiosarcomas?
GR, Lab, Schnauzer, GSD
What are clinical signs of hemangiosarcomas?
Acute collapse to incidental finding
How do you treat a hemangiosarcoma?
Splenectomy
What is the MST for a hemangiosarcoma treated with splenectomy alone?
3mo
What is the MST for a hemangiosarcoma treated with splenectomy and chemo?
9-12mo
What is a hemangiosarcoma?
Malignancy of endothelial cells that line the blood vessels
What induces cutaneous hemangiosarcomas?
UV radiation from the sun
Which dog breeds are most commonly affected by splenic hemangiosarcomas?
Large breeds like GSD, GR, labs
What region of the heart is most commonly affected by a hemangiosarcoma?
R atrium (auricle)
What is the most common tumor to met to the brain?
Hemangiosarcoma
Why might a hemangiosarcoma present for emergency?
Ruptured splenic mass (hemoabdomen, shock, pericardial effusion)
What is the MST of a hemangiosarcoma regardless of treatment?
12mo
How does an HSA appear on ultrasound?
Cavitary and fluid-filled
How exfoliative is an HSA?
Poorly exfoliative
What is the risk of an HSA incisional biopsy?
Hemorrhage
What cell changes can be seen on bloodwork of an HSA?
Schistocytes
What chemo agents can help delay development of HSA mets and prolong survival?
Doxorubicin (adriamycin-based chemo)
Single lesion w/o hemorrhage
Stage 1
Single lesion w/hemorrhage
Stage 2
HSA w/metastasis
Stage 3
Which dog breeds are at increased risk of developing a cutaneous HSA?
Unpigmented skin and white, thin, or short hair coats
Which regions of the body are most often affected by cutaneous HSA?
Ventral abdomen and medial thighs
