Metaplastic Carcinoma with Predominant Chondrosarcoma of the Right Breast

A 45-year-old female presented with complaint of a lump in the right breast for the last 6 months. Excisional biopsy had been performed outside our institution, which was suggestive of a pure mammary chondrosarcoma. Modified radical mastectomy of the right breast was performed and histopathology was suggestive of a pure mammary chondrosarcoma of the right breast. One axillary lymph node was positive for metastasis, the rest of the lymph nodes were free of metastasis. Immunohistochemistry was suggestive of a metaplastic carcinoma with a predominant chondrosarcoma in the right breast. Postoperative radiotherapy was given to the patient with a further plan of chemotherapy.