In the last decade tremendous progress has been made in the diagnosis and treatment of tumours of the mediastinum. The use of immunohistochemistry, molecular biology, electron microscopy, CT and MRI, and a better knowledge of tumour markers, has made for better diagnosis, often without the need for biopsy, in many cases. This in turn has clarified the classification and thus the epidemiology of tumours of the mediastinum, and modern radiotherapy, chemotherapy and surgery has led to improved survival of patients at risk. With over 300 illustrations, mostly in full colour, and a well-referenced text, this atlas is aims to serve as a bench reference for the practising diagnostic pathologist and a study aid for the trainee, as well as a comprehensive source of reference for oncologists and surgeons.