Psychosomatic Medicine, the newest psychiatric subspecialty formally approved by the American Board of Medical Specialties and the Accreditation Council for Graduate Medical Education, represents a scientific and clinical discipline that exists at the interface of psychiatry and medicine. This scholarly and comprehensive new textbook represents the cutting edge in this burgeoning field and is destined to become the premier textbook to educate trainees and add to the knowledge base of clinicians. It presents a detailed approach to psychiatric assessment and consultation, essential to comprehensive care in the medical setting; psychological and neuropsychological assessment; legal and ethical issues that arise in psychiatric care of the medically ill; and a review of psychological, emotional, and behavioral responses to illness. Included are epidemiology, clinical features, diagnosis and assessment, etiology, differential diagnosis, and treatment of more than 17 psychiatric disorders and conditions in the medically ill, as well as their effects on medical disorders. It encyclopedically reviews psychiatric disorders in the context of specific medical diseases, organized by specialty and subspecialty, including the subspecialties of internal medicine, surgery, neurology, obstetrics and gynecology, pediatrics, physical medicine, and dermatology.