Lymphoma and leukemia of the nervous system may be defined as direct or indirect involvement of the central or peripheral nervous systems by these malignancies. The diagnosis and management of these conditions is the subject of this book. In the first part of the book the focus is on primary central nervous system lymphoma (PCNSL), an uncommon type of non-Hodgkin lymphoma confined to the nervous system. The first two chapters of the book are an overview of the lymphoid malignancies and leukemias for non-oncologists. This introduction is followed by chapters on the pathology, epidemiology,...