Histological Classification of Head and Neck Tumors

Head and neck constituency tumor display many types of cell depending on the lineages, which can develop in a variety of tumor types. Nodaway, all these types and variants of tumor have been recognized based on histomorphological features and their molecular behavior. The most updated and receptive classification is provided by the World Health Organization (WHO) and the American Joint Committee on Cancer (AJCC). In the chapter, the discussion will include the common neoplasm, which can occur in oropharynx, nasopharynx, sinonasal region, salivary gland, thyroid gland and other adjacent structures. A brief overview, clinical presentation, histomorphology, genetic profile and outcome/prognosis will be highlighted.

Keywords: Genetic profiling, Head and neck tumor, Miscellaneous tumor, Molecular, Morphology, Predictive factor, Prognostic, Salivary gland tumor, Tumor with and without squamous differentiation, WHO and AJCC classification.