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 Sites and Symptoms. The usual organs involved in hemangiosarcoma in dogs are the spleen, the right atrium of the heart and the tissue beneath the skin, called the subcutis. The tumors invade surrounding normal tissue and also metastasize (spread to other parts of the body).