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Carcinosarcoma is composed of two malignant components, carcinomatous and sarcomatous. The epithelial component is usually high grade carcinoma for example, serous/clear cell type. The mesenchymal part comprises either homologous (a), ×100 or heterologous element for example, cartilage or bone. Chondrosarcomatous element (∗) is present in (b), ×100.
