This work offers a comprehensive reference guide to help clinicians in the field of Internal Medicine addressing common aspects of endocrinological disorders in their daily practice. The exponential growth in our knowledge of biomedicine calls for continuous multidisciplinary approaches across specialists and disciplines. In this volume, recognized experts in each given area explore the complex mechanisms linking endocrinological disorders to abnormalities of the cardiovascular system, kidney, liver and gastrointestinal tract, autoimmune, neuro-psychiatric, rheumatic, and dermatologic diseases. Aspects connected to critically ill and elderly patients are examined as well, helping to enhance daily interactions with the most fragile populations observed in clinical medicine. The individual chapters are designed to deliver timely information while explaining pathophysiological mechanisms with the help of figures, flow-charts, and updated guidelines. The book offers a unique and valuable resource for all clinicians, residents, specialists, and physicians involved daily in the management of complex and multidisciplinary systemic diseases.