Hemangiosarcoma
Hemangiosarcomas are malignant tumors derived from the cells lining blood vessels (hem = blood, angio = vessel, sarcoma = tumor). Hemangiosarcoma is common cancer in dogs accounting for about 5% of cases. Since blood vessels run throughout the body, hemangiosarcomas can develop anywhere. However, the foremost common sites are the skin, spleen, liver, and heart. Most hemangiosarcomas (except some appearing within the skin) are both locally aggressive and have a high likelihood of spreading to other parts of the body. These tumors are typically crammed with blood and really fragile.
Signs of hemangiosarcoma will vary counting on the situation of the first tumor. Dogs with hemangiosarcoma occurring inside the body may have symptoms associated with blood loss into the abdomen or space round the heart, leading to weakness, lethargy, or pale gums. Golden retrievers, German shepherds, and Labrador retrievers are among the breeds most often diagnosed with hemangiosarcoma.
Dogs with cutaneous hemangiosarcoma may have a mass in or under the skin. Cutaneous hemangiosarcomas are found more frequently in light-skinned dogs and are related to sun exposure.
