Editing Angiosarcoma (section)

==== Primary breast angiosarcoma ====
This refers to angiosarcoma of the breast [[Idiopathic disease|without underlying causes]] such as [[radiation therapy]] or [[lymphedema]]. It is rare and makes up only 0.04% of [[Breast cancer|breast tumors]] and 8% of breast [[sarcoma]]s. It is very aggressive, usually presents in younger females and is often noticeable by a [[Palpation|palpable]] mass. Prognosis is poor with a five-year survival between 8 and 50%.<ref name="headtotoe" />