Carcinoma, Basal CellSkin NeoplasmsCarcinoma, Squamous CellBasal Cell Nevus SyndromeCarcinoma, Renal CellSkinEyelid NeoplasmsCarcinomaMohs SurgeryFacial NeoplasmsSunlightKeratosisNeoplasms, Basal CellKeratosis, ActinicBowen's DiseaseSkin PigmentationSunscreening AgentsSunburnUltraviolet RaysImmunohistochemistryDermoscopyKidney NeoplasmsNeoplasms, Radiation-InducedHead and Neck NeoplasmsKeratoacanthomaCarcinoma, Merkel CellCarcinoma, HepatocellularCarcinoma, Transitional CellSkin DiseasesKeratosis, SeborrheicMelanomaMouth NeoplasmsKeratinocytesTumor Markers, BiologicalGene Expression Regulation, NeoplasticNeoplasm InvasivenessKeratin-14Hedgehog ProteinsCarcinoma in SituEpidermisCarcinoma, BasosquamousCarcinoma, Small CellEsophageal NeoplasmsAminolevulinic AcidPhotochemotherapyKeratinsLung NeoplasmsSunbathingNeoplasms, Multiple PrimaryPrognosisBetapapillomavirusCell Line, TumorKeratin-15Jaw CystsPhotosensitizing AgentsBiopsyRetrospective StudiesPrecancerous ConditionsNeoplasm Recurrence, LocalNeoplasm StagingChromosomes, Human, Pair 9Antineoplastic AgentsNeoplasm ProteinsRNA, MessengerCarcinoma, PapillaryReceptors, Cell SurfaceAminoquinolinesAdenocarcinomaSkin AgingRisk FactorsDermatologyUrinary Bladder NeoplasmsSolar SystemMedulloblastomaTumor Suppressor Protein p53MutationFollow-Up StudiesNeoplasm MetastasisReverse Transcriptase Polymerase Chain ReactionImmunoenzyme TechniquesOrbit EviscerationHair FollicleHair ColorBreast NeoplasmsLiver NeoplasmsDNA, NeoplasmIncidenceCarcinoma, Giant CellPhotosensitivity DisordersNose NeoplasmsTumor Cells, CulturedNeoplasms, Second PrimaryMice, NudeCell ProliferationTreatment OutcomeCell Transformation, NeoplasticCarcinoma, Signet Ring CellEarly Detection of CancerGenetic Predisposition to DiseaseNeoplasms