This second edition of RadCases Thoracic Imaging from Carlos Restrepo and Steven Zangan presents 100 differential diagnoses covering the span of lung and thorax disease states, from common conditions such as pneumonia and ARDS to rare conditions like Mounier-Kuhn syndrome and DIPNECH. This edition includes important variations of prior cases, updated diagnostic and management strategies, and new pathological entities. Cases are strategically designed to simulate pathologies encountered in day-to-day practice, increase knowledge, and provide robust exam preparation. For maximum ease of self-assessment, each case begins with the clinical presentation on the right-hand page; study that and then turn the page for CT and chest radiograph findings, differential diagnoses with the definitive diagnosis, essential facts, pearls and pitfalls, and more.