AxillaSkinSkin NeoplasmsSentinel Lymph Node BiopsySkin AgingSkin DiseasesGroinHyperhidrosisThermometersLymph Node ExcisionApocrine GlandsLymphatic MetastasisLymph NodesBreast NeoplasmsSkin Physiological PhenomenaSkin TestsSkin AbsorptionTechnetium Tc 99m Sulfur ColloidSkin PigmentationLymphedemaLymphoscintigraphyPaget Disease, ExtramammaryAcanthosis NigricansMastectomySweatSyphilis, CutaneousToesTechnetium CompoundsFalse Negative ReactionsCorynebacteriumSkin, ArtificialPectoralis MusclesBiopsyArmBrachial PlexusMastectomy, Modified RadicalNipplesCarcinoma, Ductal, BreastNeoplasm StagingNeoadjuvant TherapyColoring AgentsNoseOdorsUltrasonography, MammarySkin Diseases, BacterialSkin UlcerRadiopharmaceuticalsSoft Tissue NeoplasmsEpidermisLymphatic DiseasesMelanomaSensitivity and SpecificityBreastMastectomy, SegmentalTreatment OutcomeSkin AbnormalitiesBiopsy, Needle