ImmunohistochemistryParaffinTissue EmbeddingTissue FixationParaffin EmbeddingFormaldehydeImmunoenzyme TechniquesBreast NeoplasmsTumor Markers, BiologicalReceptors, ProgesteroneReceptors, EstrogenAntibodies, MonoclonalReceptor, erbB-2In Situ Hybridization, FluorescencePrognosisReverse Transcriptase Polymerase Chain ReactionRNA, MessengerBlotting, WesternKi-67 AntigenKeratin-7HistocytochemistryKeratinsTissue Array AnalysisAdenocarcinomaDog DiseasesStaining and LabelingBiopsyVimentinNeoplasm ProteinsS100 ProteinsCarcinomaProliferating Cell Nuclear AntigenTumor Suppressor Protein p53Gene Expression Regulation, NeoplasticCarcinoma, Squamous CellIn Situ HybridizationRats, Sprague-DawleyDisease Models, AnimalEpitheliumRats, WistarAdenomaFixativesGene ExpressionTissue DistributionKeratin-20Neoplasm InvasivenessLymphatic MetastasisFatal OutcomeFluorescent Antibody TechniqueNeoplasm StagingLung NeoplasmsAntigens, NeoplasmFluorescent Antibody Technique, IndirectHyperplasiaDogsCalbindin 2Stomach NeoplasmsDesminCell Line, TumorCell ProliferationBiological MarkersMicroscopy, ElectronTime FactorsAntigens, Differentiation, MyelomonocyticSkinProto-Oncogene Proteins c-kitBrainNeovascularization, PathologicSkin NeoplasmsLymph NodesCat DiseasesMice, Inbred C57BLCell CountCarcinoma, Ductal, BreastApoptosisAntigens, CDMucin-1Phosphopyruvate HydrataseImmunochemistryMouth NeoplasmsHematoxylinPrecancerous ConditionsAntibodiesRetrospective StudiesPolymerase Chain ReactionEpithelioid CellsDisease ProgressionSalivary Gland NeoplasmsSynaptophysinCells, CulturedRabbitsChromograninsEpithelial CellsUp-RegulationS100 Calcium Binding Protein GOvarian NeoplasmsKidneyLiver NeoplasmsNeuronsCell Differentiation