Nasopharynx and Oropharynx

The oropharynx and nasopharynx are the sites of common infectious diseases, as well as a wide variety of malformative and neoplastic lesions, requiring differential diagnosis. The epidemiologic, aetiopathogenetic, morphological and molecular features of these entities are discussed. Particular emphasis is given to aspects of viral carcinogenesis, regarding both oropharyngeal and nasopharyngeal carcinomas, including the current diagnostic methods of virus detection. This chapter is a complement of Chaps. 1, 11, 12 and 13.