Diagnostic evaluation and treatment of primary breast osteosarcoma: A case report.

Primary breast osteosarcoma (PBO) is a rare tumor of the breast, with only case reports and small case series published in the literature. Classic imaging findings of sunburst calcifications, a rim of intermediate density, and intense uptake on bone scintigraphy can help make the correct diagnosis preoperatively, allowing for appropriate surgical and chemotherapeutic management. We present the imaging evaluation, treatment course, and follow-up of a case of PBO diagnosed in a 67-year-old patient.