Figure 1: Histological features of selected carcinosarcoma cases; chondroid areas as heterologous elements in the sarcoma component (H&E ×40) (a), endometrioid carcinoma in the epithelial component and mesenchymal areas containing heterologous elements side by side (H&E ×100) (b), serous carcinoma foci as epithelial component (H&E ×40) (c), endometrioid carcinoma foci as epithelial component (H&E ×40) (d), rhabdoid differentiation (H&E ×100) (e), Immunohistochemical Desmin positivity of rhabdoid differentiation areas (attached thumbnail, e), Chondrosarcoma area (H&E ×200) (f), Immunohistochemical S100 positivity of chondroid areas (attached thumbnail, f)