This book provides a detailed update on all aspects of fine-needle aspiration cytology of breast lesions. It will serve readers as an up-to-date reference and atlas on both new entities in breast pathology, including borderline lesions such as flat epithelial atypia, and the classic benign and malignant lesions. Throughout, emphasis is placed on the characteristic diagnostic features as well as the common pitfalls faced by cytologists. As cytologic features can be highly variable, corresponding cytology and histology images are displayed together, enabling readers to gain a good understanding of the morphologic features of various lesions. Core-needle biopsy and fine-needle aspiration cytology are compared in depth, with attention to their relative strengths and weaknesses and indications. In addition, the impact of molecular classification of breast cancers on cytologic diagnosis is explored, and the use of molecular techniques in diagnostic cytology is discussed.

Fernando Schmitt is Director of the Molecular Pathology Unit at the Institute of Molecular Pathology and Immunology of the University of Porto and Associate Professor of Pathology at the Medical Faculty, Porto University. Dr. Schmitt is Chairman of three committees of the International Academy of Cytology and President of the European Federation of Cytology Societies. He has also been Chairman of the Working Group of Cytopathology of the European Society of Pathology and President of the Portuguese Society of Pathology. Dr. Schmitt is a member of many journal editorial boards, including Acta Cytologica, Cytopathology, and Breast Cancer Research. During the past 5 years he has authored nearly 90 peer-reviewed research papers as well as a number of reviews and editorials.

Gary Man-Kit Tse is a Senior Medical Officer and Honorary Clinical Associate Professor at the Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong. He is also Visiting Associate Professor at Sun Yet San Medical School, Guangzhou, China. He is an editorial board member of a variety of journals, including BMJ Case Reports, Pathology, the Journal of Clinical Pathology, the Chinese Pathology Journal, and the World Journal of Clinical Oncology, and is a referee for many more. He has published extensively on breast pathology, and lectures widely at regional and international meetings.

Puay-Hoon Tan is currently Head of the Department of Pathology at Singapore General Hospital and is an Adjunct Associate Professor at the Departments of Pathology and Anatomy, National University of Singapore and the Duke-NUS Graduate Medical School. She is an editorial board member of a number of journals, including Pathology, Modern Pathology, Breast Cancer Research, and Analytical and Quantitative Cytology and Histology. Dr. Tan has a longstanding interest in breast pathology and has made many contributions to literature in the field.