Although astonishing progress has been achieved during recent years in the treatment of patients afflicted with AIDS, this disease is still spreading in much of the developing world, where economic resources are limited. Physicians working in these geographic areas in- creasingly face the dramatic and devastating consequences of this epidemic and will cer- tainly benefit from the information imparted in this book. Indeed, it has now been well established that radiologic studies playa key role in the diagnosis and management of patients with HIV infection. In the Western world the positive effects of new potent drugs are already discernible, resulting in decreased mortality from the illness. But as AIDS patients survive longer, the medical profession is confronted with changing radiologic findings related to longstanding AIDS. This superb book provides a very comprehensive overview of our current knowledge about radiologic imaging features in AIDS. I would like to congratulate most sincerely the Editors for their tremendous field work, their enthusiasm, and their high level of expertise, which have resulted in the publication of this outstanding volume. To assist them in their task, they have recruited numerous leading specialists in the field. Meticulous editing has reduced the repetition that otherwise can easily occur in a multiauthored textbook. I am convinced that this comprehensive and richly illustrated work will be of great interest to all clinical disciplines involved in the management of AIDS patients.