Anatomy and Physiology of the Breast -- Basic Histopathology of Breast Lesions -- Aspiration Techniques -- Liquid-Based Cytology and Cell Block in Breast Lesions -- Cytolologic classification and reporting systems -- Inflammatory Lesions of the Breast -- Fibrocystic Changes and Cysts -- Fibroadenoma -- Other Fibroepithelial Lesions -- Cytology of Epithelial Proliferative Lesions and High-Grade Ductal Carcinoma In Situ -- Papillary Lesions of the Breast -- Mucinous Lesions -- Carcinoma and Variants -- other uncommon lesions -- Assessment of Axillary Nodes -- Special Ancillary Techniques : Immunohistochemistry -- Molecular Studies and novel modalities -- Comparison of Aspiration and Core Needle Biopsy -- Future Directions.