The Second Edition of The Milan System for Reporting Salivary Gland Cytopathology, like the First Edition, represents a collaborative effort by a multidisciplinary group of cytopathologists, surgical pathologists, molecular pathologists, radiologists, and head and neck surgeons. This international group shares the goal of creating a practical and uniform reporting system for salivary gland fine needle aspiration (FNA). This book is organized into six general diagnostic categories:  Non-Diagnostic,   Non-Neoplastic,   Atypia of Undetermined Significance (AUS),   Neoplasm: Benign,   Neoplasm: Salivary Gland Neoplasm of Uncertain Malignant Potential (SUMP),   Suspicious for Malignancy,  and  Malignant.  It includes definitions, morphologic criteria, and explanations for each of the diagnostic categories.