This book provides a practical approach to the diagnosis of the diverse tumors that can be seen in the mediastinum. It discusses not only a historical perspective of what has been done in the past but also the assessments of those changes from experts in their fields. By doing so, the text aims to improve the treatment and assessment of patients with mediastinal tumors. This book focuses on daily practice, as pathologists are confronted with this type of pathology regularly. In some areas, it is inevitable that current practice calls for ancillary tests, including immunohistochemistry and molecular techniques. Mediastinal Pathology should be useful not only to general surgical pathologists or thoracic surgical pathologists, but also to thoracic surgeons, radiologists, and oncologist, who are called upon to care for patients with mediastinal tumors. .