Abdel Razek Ahmed Abdel Khalek
From the Department of Diagnostic Radiology, Mansoura Faculty of Medicine, Mansoura. Egypt.
J Comput Assist Tomogr. 2019 Sep/Oct;43(5):671-678. doi: 10.1097/RCT.0000000000000896.
The fourth edition of World Health Organization (2017) classified odontogenic tumors according to the tissue of origin. Epithelial odontogenic tumors include ameloblastomas, calcifying epithelial odontogenic tumors, adenomatoid odontogenic tumors, and squamous odontogenic tumors. Mixed epithelial and mesenchymal odontogenic tumors include odontomas, ameloblastic fibromas, dentigenic ghost cell odontogenic tumors, and primordial odontogenic tumors. Mesenchymal odontogenic tumors include cementoblastomas, cement-ossifying fibromas, odontogenic fibromas, and odontogenic myxomas. Malignant odontogenic tumors are either carcinomas or sarcomas. The imaging appearance of odontogenic tumors varies according to its category. Computed tomography and magnetic resonance imaging play an important role in localization, characterization, and extension of odontogenic tumors to the teeth and surrounding tissue.
世界卫生组织2017年第四版根据起源组织对牙源性肿瘤进行了分类。上皮性牙源性肿瘤包括成釉细胞瘤、钙化上皮性牙源性肿瘤、腺样牙源性肿瘤和牙源性鳞状细胞瘤。上皮和间充质混合性牙源性肿瘤包括牙瘤、成釉细胞纤维瘤、牙源性影细胞牙源性肿瘤和原始牙源性肿瘤。间充质牙源性肿瘤包括成牙骨质细胞瘤、牙骨质骨化纤维瘤、牙源性纤维瘤和牙源性黏液瘤。恶性牙源性肿瘤为癌或肉瘤。牙源性肿瘤的影像学表现因其类别而异。计算机断层扫描和磁共振成像在牙源性肿瘤向牙齿及周围组织的定位、特征描述和范围界定方面发挥着重要作用。
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