RT Book, Section A1 Eskander, Antoine A1 Kang, Stephen Y. A1 Harris, Michael S. A1 Otto, Bradley A. A1 Adunka, Oliver A1 Weber, Randal S. A1 Teknos, Theodoros N. A2 Brunicardi, F. Charles A2 Andersen, Dana K. A2 Billiar, Timothy R. A2 Dunn, David L. A2 Kao, Lillian S. A2 Hunter, John G. A2 Matthews, Jeffrey B. A2 Pollock, Raphael E. SR Print(0) ID 1164310277 T1 Disorders of the Head and Neck T2 Schwartz's Principles of Surgery, 11e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781259835353 LK accessmedicine.mhmedical.com/content.aspx?aid=1164310277 RD 2021/03/07 AB Key Points One of the most common benign head and neck disorders includes sinonasal inflammatory disease which can present as acute or chronic rhinosinusitis. Acute adeno-tonsillitis is a major cause of morbidity in children and adenotonsillectomy can significantly improve symptoms of both sleep disordered breathing and of symptoms during acute infections. Squamous cell carcinoma comprises >90% of all of the malignant pathology of the mucosal lining of the upper aerodigestive tract. The ideal treatment protocol for these cancers varies by subsite, stage, patient comorbidity, and center preference/experience. Early stage disease is treated with unimodality and late stage disease is treated with multiple modalities in the form of primary surgery with adjuvant radiotherapy or primary concurrent chemoradiotherapy. Free flap reconstruction of head and neck defects is integral to help improve patient-reported quality of life and to re-establish form and function.