This latest AFIP atlas reflects the progress made over the thirty years since the last fascicle on these topics appeared. There are thorough discussions of dysplasias, carcinomas, and mesenchymal tumors at the three sites. In addition, sections are devoted to the numerous tumor-like lesions that must be distinguished from neoplasms. Among these are mesodermal stromal polyp, mesonephric hyperplasia, placental-site nodule, postoperative spindle cell nodule, tubal metaplasia, and tunnel clusters. The embryology and anatomy of the lower female genital tract are summarized with the use of diagrams as well as photomicrographs. They are followed by a discussion of human papillomaviruses and cancer of the lower female genital tract. Unusual as well as common entities are described and illustrated. The authors worked with the Classification and Nomenclature Committee of the International Society of Gynecological Pathologists. Therefore, their classification and nomenclature reflect more than just their own views and will be the basis for the World Health Organization's forthcoming histological classification of tumors "blue book." There are 262 pages, 5 tables, 3 color plates, and 341 black-andwhite illustrations. The quality of both clinical and microscopic illustrations is outstanding. Gynecologists and gynecological oncologists as well as pathologists will find it indispensable. Tumors of the Mammary Gland The expanded size and scope of this third edition of Tumors of the Mammary Gland reflect the explosive growth of information relating to breast disease that has occurred in the last 25 years. The comprehensive text begins with an introduction that traces the controversial issue of precancerous or proliferative breast lesions from the first fascicle (authored in 1950 by Stewart) to the present. Nearly 25% of the 382 pages of text and 593 illustra-tions are devoted to the pathology of benign proliferative lesions, atypical hyperplasia, and in-situ carcinoma. The classification of mammary tumors employed in this volume is based on one adopted by the World Health Organization in 1981. However, the listing has been substantially expanded to include more than 20 specific entities described in succeeding years. Subheadings have also been added for a number of clinicopathologic conditions with distinctive pathologic characteristics such as occult carcinoma presenting with axillary Iymph node metastases. The text includes sections on mammary gland anatomy, developmental and physiological abnormalities, and inflammatory conditions. Extensively illustrated sections describe benign proliferative lesions, benign epithelial tumors, fibroepithelial neoplasms (fibroadenoma and cystosarcoma), atypical hyperplasia and in-situ carcin-oma of lobules and ducts, 17 subtypes of invasive carcinoma, breast tumors in children, tumors of the male breast, mesenchymal tumors, and Iymphoid neoplasms. Separate sections are devoted to the TNM staging of carcinoma, unusual clinical manifestations of breast carcinoma, the pathology of axillary Iymph nodes, cytologic diagnosis of breast lesions, and the pathologic examination of breast specimens. Of particular note are discussions of papillary neoplasms, atypical hyperplasia and in-situ carcinoma, prognostic markers in carcinoma, and vascular neoplasms. The detailed histopathological descriptions consider differential diagnosis and discuss the role of immunohistochemistry, electron micros-copy, and other procedures for establishing the pathologic diagnosis. The clinical characteristics of the lesions are described, and the current treatment options reported in the literature are summarized.