PrefaceWelcome to this comprehensive exploration of sarcoidosisan intricate journey through the labyrinth of a complex and enigmatic medical condition. As we embark on this literary expedition, it is my privilege to introduce you to a wealth of knowledge, insights, and patient data that collectively contribute to a deeper understanding of this fascinating yet challenging disease. Sarcoidosis is a rare and multifaceted disorder that can manifest in a myriad of ways, effecting various organs and systems within the body. Its elusive nature often presents clinicians and patients alike with diagnostic and therapeutic dilemmas. This book seeks to unravel the mysteries surrounding sarcoidosis, offering a holistic perspective t that combines medical expertise, personal narratives, and the latest research findings In these pages, you will find a blend of scientific rigor and theoretical data based on clinical practice. We have endeavored to create a resource that not only delves into the clinical aspects of sarcoidosis but also resonates with the lived experiences of individuals grappling with the condition. We aim to shed light on the challenges, triumphs, and resilience that define the sarcoidosis journey. The landscape of sarcoidosis research and treatment is continualy evolving, and this book serves as a testament to the collaborative efforts of the medical community and the individuals directly impacted by the disease. From the historical origins of sarcoidosis to the latest advancements in diagnostics and therapeutics, each chapter is a stepping stone in our collective quest for knowledge and improved patient outcomes Whether you are a medical student, clinician, or sn academician dedicated to understanding and treating sarcoidosis, this book is designed to inform, inspire, and foster a sense of community. May it serve as a beacon of knowledge and empathy, guiding you through the complexities of sarcoidosis with compassion and resilience. I am confident that this book will be a very useful diagnostic and therapeutic guide for medical students, clinicians and academicians, both in terms of practice and as a source of the latest up-to-date information With sincere hope for a future where sarcoidosis is better understood and effectively managed, This book is dedicated to all medical students, clinicians and academicians who work devotedly under extremely difficult conditions all over the world, regardless of peace, war or any catastrophe.Fenerbahçe December 2023Cüneyt Tetikkurt