“…PBS originates in mesenchymal tissue of the breast and it is characterized by a fast growth, a poor overall prognosis and a recurrence within 6 months to 2 years after the first resection [6]. The histological subtypes include malignant fibrous histiocytoma, angiosarcoma, fibrosacoma, liposarcoma, leiomyosarcoma, spindle cell sarcoma, osteosarcoma and undifferentiated pleomorphic sarcoma [7,8].…”