This second edition of Small Animal Cytologic Diagnosis presents clinically applicable information about the use of cytology in small animals and indicates when advanced diagnostic testing can be beneficial to diagnose underlying disease processes. It includes more images, additional cases, and a new user-friendly chapter organization. This book discusses the pathophysiology of inflammation, cancer biology, and comparisons to histology to help readers fully comprehend the cytologic changes that can occur with inflammation and neoplasia. Also covered are some of the limitations and advantages of cytology compared to histopathology, important gross findings (e.g. body cavity effusions), and parasites and the associated diagnostic methods required. Further information is provided on oncogenes, reference values for effusions and bone marrow aspirates, laboratory handling of samples, and how to carry out certain diagnostics. The book: Includes chapters written by experts from around the world Provides multiple cytological images for the same sample, providing different views of what may be seen Uses technical language where appropriate but without overcomplicating the information presented: it is very accessible and easy to understand This book includes tissue-specific chapters focusing on diseases of a particular area, always in comparison to normal tissue. Each of these chapters concludes with various cases that include information on signalment, history, pertinent laboratory data, specimen images, final outcome, and the underlying pathology causing the cytologic lesions, when possible. With more than 2,000 superb illustrations, this comprehensive resource provides ample practical information for students as well as practicing veterinarians.