Neoplasm MicrometastasisBone Marrow NeoplasmsSentinel Lymph Node BiopsyLymphatic MetastasisKeratinsLymph NodesSensitivity and SpecificityNeoplasm MetastasisBreast NeoplasmsNeoplasm StagingEarly Detection of CancerAxillaKeratin-20HematoxylinEarly DiagnosisImmunohistochemistryNeoplastic Cells, CirculatingPrognosisTumor Markers, BiologicalFrozen SectionsMammaglobin BReverse Transcriptase Polymerase Chain ReactionLung NeoplasmsCarcinoembryonic AntigenStomach NeoplasmsLymph Node ExcisionNeoplasm InvasivenessColorectal NeoplasmsPolymerase Chain ReactionLimit of DetectionPredictive Value of TestsLiver NeoplasmsKeratin-19MelanomaCarcinomaNeoplasmsAdenocarcinomaMice, NudePancreatic NeoplasmsRetrospective StudiesReproducibility of ResultsBone MarrowNeoplasm Recurrence, LocalSkin NeoplasmsNeoplasm TransplantationTime FactorsSurvival AnalysisImmunoenzyme TechniquesFollow-Up StudiesRNA, MessengerAntibodies, MonoclonalSurvival RateMicrotomy