In recent years, the clinical evolution of thyroid diseases has been studied exhaustively as new discoveries have been made about thyroid malfunction and the effective management of patients. This volume presents a comprehensive exposition of a range of disorders caused by thyroid dysfunction. After defining the dysfunction or disease, the text presents the epidemiology, etiopathogenesis, clinical features, first and second level tests for diagnosis, first and second line therapies, prognosis, and recommendations for follow-up. The information presented in this volume is invaluable for practicing clinicians and those training in internal medicine, endocrinology, surgery, and other areas of medicine.