Chronic rhinosinusitis (CRS) is one of the most common health care complaints, with the prevalence of 5-12% worldwide. This book aims to present the new findings in mechanism, diagnosis and management of this widespread condition to clinical practitioners. All practical information about CRS is compiled; therefore busy clinicians would not have to perform exhaustive literature studies to diagnose CRS.This book firstly presents the advances in the understanding of epidemiology, genetics, mechanisms, phenotypes, and immunology of this disorder. In the following chapters, details in clinical...