This e-book “Thyroid FNA Cytology, Differential Diagnoses and Pitfalls” is authored by many well-known thyroid cytologists and pathologists, mostly from Asia. The chapters are prepared based on case studies and organized systematically into sections on clinical summary, radiologic findings, cytologic findings, differential diagnosis, gross and histopathologic diagnosis, discussion, and references. The first few chapters discuss some key principles regarding thyroid cytopathology. The differences in the approaches to thyroid FNA cytology in various countries such as the USA, UK, Italy, and Japan are detailed nicely and are very insightful; they raise questions as to whether the differences are cultural or responses to external factors (e.g. medical-legal environment in the USA). The last chapters of this book cover the technical aspects of thyroid cytology. These include procedural complications, liquid-based cytology, immunocytochemistry, molecular diagnosis, FNA techniques, and staining procedures. Just as commented in his book review by Dr. N. Paul Ohori at the University of Pittsburgh Medical Center, United States, and Dr. Guido Fadda at the Foundation “Agostino Gemelli” University Hospital Catholic University, Italy, this e-book takes an unconventional but pragmatic approach of addressing many key issues in thyroid cytopathology through the use of case studies in many chapters. The selection of chapter titles is excellent and addresses many common dilemmas in daily practice. Case examples are well illustrated and the thyroid cytology practitioners should find this book to be a valuable reference. Since some topics (e.g. diagnosis of AUS/FLUS) are controversial with many differing opinions, readers may want to use the text as a foundation and use the up-to-date references to build on their own understanding of the topics.
