[Breast osteosarcoma. Review of the literature and presentation of two cases].

Two cases of primary osteosarcoma of the breast are reported. The Authors emphasize the overwhelming role of chimiotherapy in the treatment of this rare condition, not dissimilarly from recent advances in the management of osseous osteosarcoma. There was no evidence of recurrent or metastatic disease at respectively 38 and 49 months of follow-up. A review of the literature, including 150 published cases, reveals that therapeutic policies quite diverge yet.