[Primary angiosarcoma of the breast].

We report on a 39 year old woman with a biopsy diagnosed angiosarcoma of the breast. Surgical treatment consisted of a modified radical mastectomy with axillary lymph node dissection (level I and II). The size of the tumor was 4.5 x 3.5 x 2.3 cm with G II grading. In addition the patient was put on postoperative chemotherapy (EC). Soft tissue sarcomas of the breast are very rare tumors (0.04 to < 1 % of all malignant breast tumors). The etiology of most of the vascular neoplasias of the breast is therapy associated such as preexisting surgery and radiotherapy. We found a primary angiosarcoma of the breast and tried to demonstrate aspects of the morphological diagnosis, prognosis and treatment of this disease.