Odontogenic Carcinosarcoma
摘要
Odontogenic carcinosarcoma (OCS) is an extremely rare malignant tumor that was included in the WHO classification of jaw lesions in 1992 [1–3]. It shares similar overall structure with ameloblastic fibroma (AF) with both epithelial and mesenchymal components showing the morphological parameters of malignant neoplasm. The histopathological findings reflected a distinct biphasic neoplasm with well-demarcated islands and cords of invasive malignant epithelial cells embedded in pleomorphic, hyperchromatic, and hypercellular mesenchymal cells [3–5].