[Leiomyosarcoma of the breast]

A 62-year old patient was treated at our hospital for a palpable change in the upper part of the left breast. The clinical finding was preoperatively confirmed by radiologic, ultrasound and cytology studies, however, the potential biologic process (malignant/benign) was not thus verified. Considering undefined diagnostic nature of the process, biopsy, pathohistology and immunoanalysis were performed to indicate leiomyosarcoma mammae. The incision interspace at certain sites was less than two centimeters, indicating radical breast excision in toto (ablation with evacuation of the contents of the axilla). At the time of scheduled surgery, the patient sustained cardiologic discomfort, so tumorectomy was supplemented by locoregional radiotherapy. Leiomyosarcoma of the breast is a very rare primary malignant breast tumor, with only 14 cases reported in the literature. Considering the rare occurrence of leiomyosarcoma of the breast, in radical surgery we used attitudes like in other breast tumors and leiomyosarcoma of other localizations.