Until the middle of the present century, the morphology and function of the thymus were primarily of interest to those working in the fields of pathologic anatomy, endo crinology, and pediatrics. However, during recent decades careful and refined histo logic studies of the organ have expanded our knowledge. It now seems certain that the thymus plays a central role in the immune system, and some of the substances pro duced by this organ are considered together under the collective term of "thymic hor mones." In clinical medicine (in particular endocrinology and pediatrics, as well as surgery...

Written by two of the world's most respected specialists in the field, Thoracic Imaging: Pulmonary and Cardiovascular Radiology, Third Edition brings you completely up to date with all you need to know for optimal imaging of the heart and lungs. This comprehensive title provides practical, authoritative guidance for the radiologic assessment and diagnosis of both congenital and acquired cardiovascular and pulmonary diseases. A must-have reference for more than ten years, Thoracic Imaging is your one-stop source for current, accurate coverage of pulmonary infections, diffuse lung...