Editing Angiosarcoma (section)

==== Secondary breast angiosarcoma ====
These are angiosarcoma that arise in the [[breast]] from [[Risk factor|underlying causes]] such as [[lymphedema]] or radiation, usually from [[radiation therapy]] for [[breast cancer]]. The link between radiation therapy and angiosarcoma has been disputed by some who profess the angiosarcoma is caused by concurrent lymphedema. Secondary breast angiosarcoma tends to have a bad prognosis. Radiation-associated angiosarcoma has a five-year survival of 10 to 54%. Distant [[Metastasis|metastases]] are present in 27–42% of individuals and is associated with a far worse prognosis. Other prognostic factors include size of tumor, [[Ageing|age]] and how much can be removed by surgery.<ref name="Angiosarcoma" /><ref name="headtotoe" />