Grades K â 12 | Student Interactive | Organizing & Summarizing. Story Map. The Story Map interactive is designed to assist students in prewriting and postreading activities by focusing on the key elements of character, setting, conflict, and resolution.
With hemangiosarcoma, the pericardium fills up with blood due to rupture of the tumor. When the tumor occurs in the skin, a mass or lump can usually be felt in or under the skin. The mass may become ulcerated and bleed. When the tumor occurs in a bone, it can cause pain and discomfort.
Hemangiomas and hemangiosarcomas are common in dogs. Lymphoid cancer is common and the spleen may be involved along with other parts of the body. In dogs, the prevalence rate is 13-24 cases of all types of lymphosarcoma per 100,000 dogs at risk. Although pups as young as four months may have these cancers, 80% of cases occur between the ages of 5 and 11 years.