Breast Location for De Novo Extramedullary Myeloid Sarcoma

Background: Myeloid Sarcoma (MS) is a rare hematologic cancer, which can occur as a breast mass to be distinguished from other non-hematopoietic tumors. Case Presentation: This report describe the unusual clinical history of a young woman diagnosed with MS. Radiotherapy/surgery alone may be inadequate, while chemotherapy and hematopoietic stem cell transplantation demonstrated to improve the prognosis for the isolated extramedullary localization. Conclusion: Performing a needle biopsy in order to exclude the diagnosis of a primitive breast disease is irreplaceable.