Breast anatomy / Jonathan M. Kitayama and Teri A. Longacre -- Specimen processing / Christina S. Kong and Kristin C. Jensen -- Basic breast radiology / Brandi Tamara Nicholson -- Surgical approaches to breast lesions / David R. Brenin and Anneke T. Schroen -- Juvenile breast lesions / Florette K. Gray Hazard and Gerald J. Berry -- Fibrosing lesions (diabetic mastopathy/sclerosing adenosis/radial scar/atypical apocrine adenosis/PASH) / Mary Galgano and Kristen Atkins -- Stromal lesions/sarcomas (hamartomas, periductal stromal tumors, vascular lesions, phyllodes, de novo sarcomas) / Jesse K. McKenney and Richard L. Kempson -- Intraductular and intralobular proliferations / Kristen A. Atkins -- Invasive breast carcinomas / Yan Peng, Christina S. Kong and Yunn-Yi Chen -- Cutaneous/adnexal tumors / Catherine Barry and James Patterson -- Sentinel lymph nodes / William M. Rogers and Teri A. Longacre -- Fine needle aspiration biopsy of the breast / Amy Ly and Christina S. Kong -- Special studies / Kristin C. Jensen and Matt van de Rijn