Primary Breast Angiosarcoma: A Report of a Rare Case

Breast angiosarcomas are a rare type of cancer, comprising only a small percentage of all malignant breast tumors. They can be divided into two main types: primary angiosarcoma, which develops in the absence of any pre-existing condition, and secondary angiosarcoma, which most often arises in previously irradiated breast tissue or following any other disorders affecting the breast. The primary one is an aggressive tumor, whereas the secondary may behave differently due to its relation with previous treatments. These differences need to be distinguished for the correct diagnosis and effective management. A 71-year-old woman with a personal history of hypothyroidism and benign breast lumpectomies presented to our clinic with a right breast mass. Initial imaging suggested a fibroadenoma, but after the excision of the tumor, it was identified as grade III angiosarcoma. The patient declined mastectomy, choosing local excision and surveillance.