1. Osteogenic sarcoma a rare primary tumour of the breast;Lumsden;Eur J Surg Oncol,1985
2. Osteogenic sarcoma of the mammary gland;Jernstrom;Am J Clin Path,1963
3. Extraskeletal osteosarcoma;Chung;Cancer,1987
4. Oseosarcoma of the breast: a case report with an unusual diagnostic feature;Savage;Clin Oncol,1984
5. Extraosseous osteogenic sarcoma;Sordillo;Cancer,1983