Neoplasm MicrometastasisBone Marrow NeoplasmsSentinel Lymph Node BiopsyLymphatic MetastasisKeratinsLymph NodesSensitivity and SpecificityPolymerase Chain ReactionNeoplastic Cells, CirculatingKeratin-20Molecular Diagnostic TechniquesNeoplasm MetastasisNeoplasm StagingReverse Transcriptase Polymerase Chain ReactionAxillaBreast NeoplasmsHematoxylinImmunohistochemistryFrozen SectionsMammaglobin BCarcinoembryonic AntigenPrognosisTumor Markers, BiologicalLung NeoplasmsLymph Node ExcisionStomach NeoplasmsNeoplasm InvasivenessRickettsia felisSiphonapteraSequence Analysis, DNAColorectal NeoplasmsLiver NeoplasmsDNA, BacterialKeratin-19Predictive Value of TestsLaboratory Proficiency TestingCarcinomaBartonellaMelanomaMice, NudeBone MarrowRNA, MessengerNeoplasm TransplantationVirologyPathology, MolecularAdenocarcinomaKobuvirusNeoplasm Recurrence, LocalPancreatic NeoplasmsSurvival AnalysisNeoplasmsParasitologyRickettsia InfectionsDNA, Ribosomal SpacerDNA Primers