颌骨内的胚胎性成牙组织常为牙源性肿瘤的组织来源。因此,颌骨是人类骨骼中最好发上皮性肿瘤的部位,并且常伴有牙体样组织形成。牙源性恶性肿瘤发病率低,缺乏临床及病理诊断经验,需与多种来源类型的肿瘤鉴别诊断,这些侵袭性病损具有较高的复发倾向,生物学行为等方面具有特殊性。本文着重讨论牙源性恶性肿瘤的病理学诊断。 The embryonic odontoma in the jawbone is often the source of tissue for odontogenic tumors. Therefore, the jawbone is the best site of human epithelial tumors in the hair, and often accompanied by tooth-like tissue formation. The low incidence of odontogenic malignancies, the lack of clinical and pathological diagnosis experience, with a variety of sources and types of tumors need to be differentiated diagnosis of these aggressive lesions have a higher tendency to recurrence, biological behavior and so has particularity. This article focuses on the pathological diagnosis of odontogenic malignancies.