Carcinoma, Basal CellCarcinoma, Squamous CellSkin NeoplasmsCarcinoma, Renal CellKidney NeoplasmsBasal Cell Nevus SyndromeCarcinomaEyelid NeoplasmsMohs SurgeryFacial NeoplasmsCarcinoma, HepatocellularImmunohistochemistryKeratosisHead and Neck NeoplasmsKeratosis, ActinicCarcinoma, Transitional CellDermoscopyNeoplasms, Basal CellBowen's DiseaseCarcinoma, Merkel CellMouth NeoplasmsKeratoacanthomaSunlightSkinTumor Markers, BiologicalCarcinoma in SituKeratosis, SeborrheicCarcinoma, Small CellCarcinoma, PapillaryHedgehog ProteinsEsophageal NeoplasmsCarcinoma, BasosquamousNeoplasm InvasivenessGene Expression Regulation, NeoplasticNeoplasms, Multiple PrimaryPrognosisAminolevulinic AcidCarcinoma, Giant CellJaw CystsKeratinocytesNeoplasm StagingSkin PigmentationPhotochemotherapyKeratin-15Keratin-14Chromosomes, Human, Pair 9AdenocarcinomaKeratinsLiver NeoplasmsCell Line, TumorPhotosensitizing AgentsNeoplasm Recurrence, LocalBiopsyLung NeoplasmsNeoplasms, Radiation-InducedReceptors, Cell SurfaceMedulloblastomaRetrospective StudiesBetapapillomavirusOrbit EviscerationCarcinoma, Signet Ring CellCarcinoma, Ductal, BreastUltraviolet RaysPrecancerous ConditionsAminoquinolinesCarcinoma, Acinar CellUrinary Bladder NeoplasmsNose NeoplasmsImmunoenzyme TechniquesTreatment OutcomeAntineoplastic AgentsNeoplasm ProteinsEpidermisSolar SystemVulvar NeoplasmsTumor Cells, CulturedRNA, MessengerDNA, NeoplasmHair FollicleLaryngeal NeoplasmsCarcinoma, NeuroendocrineMelanomaCarcinoma, Skin AppendageTumor Suppressor Protein p53Lymphatic MetastasisTongue NeoplasmsLoss of HeterozygosityCerebellar NeoplasmsKi-67 AntigenMaxillary NeoplasmsNeoplasm MetastasisNeoplasms, Adnexal and Skin AppendageScalpMutation