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.
Hemangioma and Hemangiosarcoma in Dogs. Hemangiomas are normally observed as red-to-black nodules that may appear singularly or in multiple areas. Sarcomas are cancers of connective tissue, blood vessels, or the fibrous tissue that surrounds and supports organs. When used together, these two terms refer to hemangiosarcoma, which is a cancer of blood vessels, usually occurring in the spleen, heart or skin.