This text provides a comprehensive review of the most frequently encountered diagnostic pitfalls in thyroid cytopathology. Written in a case study format, the text provides the most current and complete information on both non-neoplastic and neoplastic thyroid conditions. Each chapter focuses on a specific diagnostic challenge and/or pitfalls that help in the differential diagnosis as well as the judicious use of ancillary studies when necessary. A review of the current literature as it relates to each disease entity is also incorporated into respective chapters. Highly illustrated with ample illustration of microscopic features to tackle common and uncommon diagnostic challenge in everyday routine practice. This book provides a concise yet comprehensive summary of the common cytologic features needed to resolve the diagnostic pitfalls.