Chondroblastic osteosarcoma of breast in a case of phyllodes tumour with recurrence, a rare case report.

Introduction: Primary extra osseous osteogenic sarcomas have been reported in many tissues of the body but their occurrence in the breast is extremely rare. It can arise as a result of osseous metaplasia in a pre-existing benign or malignant neoplasm of the breast.

Case Presentation: A 24 year-old young lady was diagnosed to have mass in right breast.