Carcinoma, Basal CellCarcinoma, Squamous CellSkin NeoplasmsBasal Cell Nevus SyndromeCarcinomaHead and Neck NeoplasmsCarcinoma, Renal CellEyelid NeoplasmsCarcinoma, HepatocellularMohs SurgeryFacial NeoplasmsNeckHeadImmunohistochemistryNeoplasms, Basal CellCarcinoma in SituCarcinoma, Transitional CellKeratosisKidney NeoplasmsCarcinoma, PapillaryDermoscopyMouth NeoplasmsCarcinoma, Merkel CellTumor Markers, BiologicalBowen's DiseaseKeratosis, ActinicSkinSunlightKeratoacanthomaCarcinoma, Small CellKeratosis, SeborrheicLiver NeoplasmsGene Expression Regulation, NeoplasticNeoplasm InvasivenessEsophageal NeoplasmsCarcinoma, BasosquamousHedgehog ProteinsPrognosisKeratin-14KeratinsCarcinoma, Ductal, BreastNeoplasms, Multiple PrimaryCell Line, TumorAdenocarcinomaKeratinocytesNeoplasm StagingKeratin-15Jaw CystsNeoplasm Recurrence, LocalAminolevulinic AcidLung NeoplasmsPhotochemotherapySkin PigmentationRetrospective StudiesChromosomes, Human, Pair 9Carcinoma, Signet Ring CellNeck PainTumor Cells, CulturedCarcinoma, Adenoid CysticPrecancerous ConditionsLaryngeal NeoplasmsReceptors, Cell SurfaceNeoplasms, Radiation-InducedPhotosensitizing AgentsBiopsyCarcinoma, BronchogenicTreatment OutcomeImmunoenzyme TechniquesAntineoplastic AgentsCarcinoma, Giant CellEpidermisNeoplasm ProteinsRNA, MessengerBetapapillomavirusUrinary Bladder NeoplasmsMedulloblastomaUltraviolet RaysLymphatic MetastasisOrbit EviscerationNose NeoplasmsDNA, NeoplasmAminoquinolinesCarcinoma, Intraductal, NoninfiltratingCarcinoma, NeuroendocrineCarcinoma, MedullaryTongue NeoplasmsCarcinoma, Skin AppendageHair FollicleNasopharyngeal NeoplasmsTumor Suppressor Protein p53Reverse Transcriptase Polymerase Chain ReactionNeoplasm MetastasisMelanomaThyroid NeoplasmsFollow-Up StudiesKi-67 AntigenBreast NeoplasmsCarcinoma, LobularCell ProliferationSolar System