Diagnostic cytology has recently enjoyed increased attention and significance in modern research. Essential information on latest developments in methods and applications in cytology is provided by this book. Chapters review methodological advances, such as in cancer detection, and explore potential relationships to molecular biology. Also discussed are: viral infection, fundamentals of quantitative methods, and the revolutionary role of immunocytochemistry in diagnostic cell typing. The new insights offered by transmission and scanning electron microscopy into cellular structure and function are discussed, and the connections between cytology and histology are highlighted. Epidemiology in connection with cytology is incorporated in special reports. The current developments described here will become routine methods of the cytology of tomorrow.