Neoplasm MicrometastasisLymph NodesLymphatic MetastasisSentinel Lymph Node BiopsyLymph Node ExcisionLymphBone Marrow NeoplasmsKeratinsNeoplasm StagingAxillaBreast NeoplasmsPrognosisImmunohistochemistryKeratin-20Frozen SectionsStomach NeoplasmsNeoplasm MetastasisHematoxylinNeoplasm InvasivenessSinoatrial NodeKeratin-19Mammaglobin BTumor Markers, BiologicalLung NeoplasmsReverse Transcriptase Polymerase Chain ReactionSensitivity and SpecificityAdenocarcinomaCarcinomaTuberculosis, Lymph NodeLymphatic DiseasesAtrioventricular NodeMesenteryNeoplastic Cells, CirculatingSurvival AnalysisMelanomaRetrospective StudiesSkin NeoplasmsPancreatic NeoplasmsBile Duct NeoplasmsMediastinumColorectal NeoplasmsSurvival RateNeoplasm Recurrence, LocalPredictive Value of TestsCarcinoembryonic AntigenRanvier's Nodes