This is a comprehensive text and atlas of lymph node pathology, providing extensive illustrative examples of characteristic diagnostic findings in the lymph node, including both benign and malignant conditions. All major disorders are discussed, including up to date information on HIVinfection and AIDS. Although an emphasis has been placed on interpretation of the routinely stained hematoxylin and eosin stained section, consideration has been given to the important immunologic and molecular biologic advances which have revolutionized hematopathology. The author has integratedclassic approaches to biopsy interpretation, including histopathology and clinical features, with newer immunophenotypic and molecular biologic techniques. The Revised European-American Lymphoma (REAL) classification for lymphoid neoplasms, which is coming into increasingly wide clinical use, isutilized in the discussion of the malignant lymphomas. Because many pathologists and clinicians continue to use the Working Formulation in day to day practice, the equivalent terms in that classification are also provided.