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.
Hemangiosarcoma (HSA) is a malignant tumor of the cells that form blood vessels. Hemangiosarcoma occurs most frequently in large breed dogs, especially German shepherd dogs, Labrador retrievers, and Golden retrievers. In dogs, the most common primary site is the spleen.