WHO Classification of Tumours of the Central Nervous System is the revised fourth edition of the WHO series on histological and genetic typing of human tumors. This authoritative, concise reference book provides an international standard for oncologists and pathologists and will serve as an indispensable guide for use in the design of studies monitoring response to therapy and clinical outcome. Diagnostic criteria, pathological features, and associated genetic alterations are described in a disease-oriented manner. Sections on all recognized neoplasms and their variants include new ICD-O codes, epidemiology, clinical features, macroscopy, pathology, genetics, and prognosis and predictive factors. The book, prepared by 122 authors from 19 countries, contains more than 800 color images and tables, and more than 2800 references. This book is in the series commonly referred to as the "Blue Book" series.