The Development of Lymphatic Mapping and Selective Lymphadenectomy.- Role of Lymphoscintigraphy for Selective Sentinel Lymphadenectomy.- Selective Sentinel Lymphadenectomy for Malignant Melanoma, Merkel Cell Carcinoma, and Squamous Cell Carcinoma.- Selective Sentinel Lymphadenectomy for Breast Cancer.- Sentinel Lymph Node Mapping in Colon and Rectal Cancer.- Sentinel Lymph Node Mapping in Esophageal and Gastric Cancer.- Sentinel Lymph Node Mapping in Lung Cancer.- Lymphatic Mapping and Sentinel Lymphadenectomy in Urology.- Selective Sentinel Lymphadenectomy for Gynecologic Cancer.- Selective Sentinel Lymphadenectomy for Head and Neck Squamous Cell Carcinoma.- Accurate Evaluation of Nodal Tissues for the Presence of Tumor is Central to the Sentinel Node Approach.- Molecular Diagnosis of Micrometastasis in the Sentinel Lymph Node.- Credentialing of Nuclear Medicine Physicians, Surgeons, and Pathologists as a Multidisciplinary Team for Selective Sentinel Lymphadenectomy.- Selective Sentinel Lymphadenectomy: Progress to Date and Prospects for the Future.