Neoplasms of the Oral and Maxillofacial Region

Abstract

The objective of this chapter was to present specific histologic criteria for the diagnosis of the main tumors and pseudotumors of the jaws. Illustration of the histologic findings of these entities was provided in correlation with their clinical and radiographic manifestations, including histologic differential diagnoses. The histologic, clinical, and radiographic presentation of benign epithelial odontogenic tumors (ameloblastoma, calcifying epithelial odontogenic tumor, adenomatoid odontogenic tumor, and squamous odontogenic tumor), mixed odontogenic tumors (ameloblastic fibroma, ameloblastic fibro-odontoma, odontoameloblastoma, primordial odontogenic tumor, odontoma, and dentinogenic ghost cell tumor), and mesenchymal odontogenic tumors (odontogenic fibroma, odontogenic myxoma, and cementoblastoma) was offered. Two malignant odontogenic tumors (ameloblastic carcinoma and ameloblastic fibrosarcoma) were also considered. Additional tumors and pseudotumors affecting the gnathic bones included melanotic neuroectodermal tumor of infancy, juvenile solitary myofibroma of the jaws, extranodal T/NK lymphoma nasal type, rhinoscleroma (respiratory scleroma), and necrotizing sialometaplasia.