2019
Photodynamic therapy for cutaneous squamous cell carcinoma in situ: Impact of anatomic location, tumor diameter, and incubation time on effectiveness
Kibbi N, Zhang Y, Leffell DJ, Christensen SR. Photodynamic therapy for cutaneous squamous cell carcinoma in situ: Impact of anatomic location, tumor diameter, and incubation time on effectiveness. Journal Of The American Academy Of Dermatology 2019, 82: 1124-1130. PMID: 31712171, DOI: 10.1016/j.jaad.2019.10.079.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAminolevulinic AcidAnalysis of VarianceBiopsy, NeedleCarcinoma in SituCarcinoma, Squamous CellCohort StudiesDisease-Free SurvivalFemaleHumansImmunohistochemistryLogistic ModelsMaleMiddle AgedMultivariate AnalysisNeoplasm InvasivenessNeoplasm StagingPhotochemotherapyPrognosisRetrospective StudiesSkin NeoplasmsSurvival AnalysisTreatment OutcomeTumor BurdenConceptsCutaneous squamous cell carcinomaALA incubation timeSquamous cell carcinomaTumor diameterALA-PDTSubsequent recurrenceCell carcinomaAnatomic locationInitial complete response ratePhotodynamic therapyCases of SCCISMultivariate analysis factorsComplete response rateMedical record reviewEffectiveness of PDTPatient demographicsClinical responseMedian timeRetrospective reviewRecord reviewRetrospective studyTreatment detailsSingle institutionEffective treatmentResponse rate
2017
Cross-sectional assessment of ultraviolet radiation–related behaviors among young people after a diagnosis of melanoma or basal cell carcinoma
Ferrucci LM, Cartmel B, Clare RA, Choy CC, Kershaw T, Leffell DJ, Mayne ST. Cross-sectional assessment of ultraviolet radiation–related behaviors among young people after a diagnosis of melanoma or basal cell carcinoma. Journal Of The American Academy Of Dermatology 2017, 79: 149-152. PMID: 29291957, PMCID: PMC6004335, DOI: 10.1016/j.jaad.2017.12.056.Peer-Reviewed Original ResearchEmerging concepts and recent advances in basal cell carcinoma
Totonchy M, Leffell D. Emerging concepts and recent advances in basal cell carcinoma. F1000Research 2017, 6: 2085. PMID: 29259776, PMCID: PMC5717469, DOI: 10.12688/f1000research.11314.1.Peer-Reviewed Original ResearchBasal cell carcinomaTreatment of BCCCell carcinomaIncidence of BCCNon-keratinizing cellsHigh cure ratesNon-surgical interventionsNon-surgical approachStandard of careMohs micrographic surgeryTargeted molecular therapiesRecurrent diseaseSurgical excisionCommon malignancySurgical interventionCure rateMicrographic surgeryMolecular therapyCarcinomaBasal layerTreatmentBurden of managementInterventionMorbiditySurgerySquamous proliferations on the legs of women: Qualitative examination of histopathology, TP53 sequencing, and implications for diagnosis in a series of 30 cases
Ko CJ, Glusac EJ, McNiff JM, Rodic N, Leffell DJ. Squamous proliferations on the legs of women: Qualitative examination of histopathology, TP53 sequencing, and implications for diagnosis in a series of 30 cases. Journal Of The American Academy Of Dermatology 2017, 77: 1126-1132.e1. PMID: 28709693, DOI: 10.1016/j.jaad.2017.04.1119.Peer-Reviewed Original ResearchConceptsSquamous cell carcinomaProminent cytologic atypiaMultiple squamous cell carcinomasCytologic atypiaSquamous proliferationTP53 mutationsDetectable TP53 mutationsLegs of womenFollicle-like structuresCell carcinomaHistopathologic findingsMultiple lesionsSCC lesionsHistopathologic analysisTP53 sequencingNumerous tumorsSmall seriesTP53 variantsClinical phenotypeKeratoacanthomaLesionsTumorsDifferent patientsAtypiaReactive phenomenonPredictors of tanning dependence in white non‐Hispanic females and males
Cartmel B, Bale AE, Mayne ST, Gelernter JE, DeWan AT, Spain P, Leffell DJ, Pagoto S, Ferrucci LM. Predictors of tanning dependence in white non‐Hispanic females and males. Journal Of The European Academy Of Dermatology And Venereology 2017, 31: 1223-1228. PMID: 28129487, PMCID: PMC5522341, DOI: 10.1111/jdv.14138.Peer-Reviewed Original ResearchConceptsEarly-onset basal cell carcinomaCase-control studyBasal cell carcinomaWhite non-Hispanic femalesSymptoms of dependenceCell carcinomaNon-Hispanic femalesAlcohol dependenceMental disordersAppropriate interventionsHost factorsNon-HispanicsStatistical ManualMultivariate modelIndoor tanningSignificant predictorsOnline surveyFourth EditionPredictorsEuropean ancestryQuestionnaireEye openerEye colorParticipantsCarcinoma
2016
Body mass index, height and early-onset basal cell carcinoma in a case-control study
Zhang Y, Cartmel B, Choy CC, Molinaro AM, Leffell DJ, Bale AE, Mayne ST, Ferrucci LM. Body mass index, height and early-onset basal cell carcinoma in a case-control study. Cancer Epidemiology 2016, 46: 66-72. PMID: 28039770, PMCID: PMC5272867, DOI: 10.1016/j.canep.2016.12.007.Peer-Reviewed Original ResearchConceptsEarly-onset basal cell carcinomaBody mass indexBasal cell carcinomaMass indexCell carcinomaInverse associationOdds ratioAdult heightUnconditional logistic regression modelsAdult body mass indexBenign skin conditionsMultivariate odds ratiosSimilar inverse associationsConfidence intervalsCase-control studySignificant inverse associationLogistic regression modelsUltraviolet radiation exposurePrior UV exposureCommon malignancyControl subjectsUV exposureBiopsy siteMedical characteristicsSkin conditionsHistopathologic features of multiple cutaneous squamous cell carcinomas of the lower extremity
Munday WR, Leffell DJ, McNiff JM, Ko CJ. Histopathologic features of multiple cutaneous squamous cell carcinomas of the lower extremity. Journal Of Cutaneous Pathology 2016, 43: 759-765. PMID: 27220356, DOI: 10.1111/cup.12738.Peer-Reviewed Original ResearchConceptsSquamous cell carcinomaMultiple squamous cell carcinomasCutaneous squamous cell carcinomaHistopathologic featuresCell carcinomaLower extremitiesMultiple cutaneous squamous cell carcinomasRetrospective chart reviewAmerican Joint CommitteeCancer staging criteriaDistinct clinical subtypesChart reviewPerineural invasionActinic keratosisStaging criteriaClinical subtypesMost lesionsStage IJoint CommitteeStage IIKeratoacanthomaPatientsCarcinomaTumorsSubtypes
2015
Histopathologic assessment of depth of follicular invasion of squamous cell carcinoma (SCC) in situ (SCCis): Implications for treatment approach
Christensen SR, McNiff JM, Cool AJ, Aasi SZ, Hanlon AM, Leffell DJ. Histopathologic assessment of depth of follicular invasion of squamous cell carcinoma (SCC) in situ (SCCis): Implications for treatment approach. Journal Of The American Academy Of Dermatology 2015, 74: 356-362. PMID: 26670714, DOI: 10.1016/j.jaad.2015.09.060.Peer-Reviewed Original ResearchConceptsSquamous cell carcinomaHair follicle infundibulumFollicular invasionCell carcinomaMohs micrographic surgeryHair follicle epitheliumAdditional patientsIntraoperative pathologyOptimal therapyRetrospective reviewTreatment failureProspective evaluationSingle institutionHistopathologic assessmentMicrographic surgeryMost tumorsDeep invasionTreatment approachesPathology specimensFollicle epitheliumLower follicleSCCISSurgeryCarcinomaInvasionFamily history of skin cancer is associated with early-onset basal cell carcinoma independent of MC1R genotype
Berlin NL, Cartmel B, Leffell DJ, Bale AE, Mayne ST, Ferrucci LM. Family history of skin cancer is associated with early-onset basal cell carcinoma independent of MC1R genotype. Cancer Epidemiology 2015, 39: 1078-1083. PMID: 26381319, PMCID: PMC4679454, DOI: 10.1016/j.canep.2015.09.005.Peer-Reviewed Original ResearchConceptsEarly-onset basal cell carcinomaBasal cell carcinomaFamily historySkin cancerAge of onsetLifestyle factorsBenign skin conditionsStrong risk factorFirst-degree relativesMC1R genotypeCell carcinomaRisk factorsAge 40High riskLifestyle characteristicsAge 50Particular malignancySkin conditionsBCC casesCancerGenetic susceptibilitySaliva samplesMultivariate modelIndividual riskAffected relatives
2014
Alcohol intake and early‐onset basal cell carcinoma in a case–control study
Zhang Y, Ferrucci LM, Cartmel B, Molinaro AM, Leffell DJ, Bale AE, Mayne ST. Alcohol intake and early‐onset basal cell carcinoma in a case–control study. British Journal Of Dermatology 2014, 171: 1451-1457. PMID: 25059635, PMCID: PMC4272627, DOI: 10.1111/bjd.13291.Peer-Reviewed Original ResearchConceptsEarly-onset basal cell carcinomaBasal cell carcinomaLifetime alcohol intakeAlcohol intakeCell carcinomaOdds ratioEpidemiological studiesConfidence intervalsBasal cell carcinoma casesUnconditional multivariate logistic regressionBenign skin conditionsMultivariate logistic regressionOverall alcohol intakeCase-control studyPrevious epidemiological studiesYears of ageType of beverageCarcinoma casesUV exposureHigh riskSkin conditionsSignificant associationLogistic regressionRisk estimatesIntakeTea, coffee, and caffeine and early-onset basal cell carcinoma in a case–control study
Ferrucci LM, Cartmel B, Molinaro AM, Leffell DJ, Bale AE, Mayne ST. Tea, coffee, and caffeine and early-onset basal cell carcinoma in a case–control study. European Journal Of Cancer Prevention 2014, 23: 296-302. PMID: 24841641, PMCID: PMC4059399, DOI: 10.1097/cej.0000000000000037.Peer-Reviewed Original ResearchConceptsEarly-onset basal cell carcinomaBasal cell carcinomaCase-control studyCell carcinomaDermatopathology databaseOdds ratioRegular consumptionRisk of BCCMultivariate odds ratiosSquamous cell carcinomaUnconditional logistic regressionConfidence intervalsModest protective effectHot teaNon-Hispanic whitesPotential health benefitsEpidemiologic evidenceInverse associationProtective effectBiopsy siteAge 40Caffeinated coffeeSkin carcinogenesisBCC casesProtective role
2013
Cutaneous squamous cell carcinomas of the lower extremity: A distinct subset of squamous cell carcinomas
Kim C, Ko CJ, Leffell DJ. Cutaneous squamous cell carcinomas of the lower extremity: A distinct subset of squamous cell carcinomas. Journal Of The American Academy Of Dermatology 2013, 70: 70-74. PMID: 24210370, DOI: 10.1016/j.jaad.2013.09.026.Peer-Reviewed Original ResearchConceptsCutaneous squamous cell carcinomaSquamous cell carcinomaLower extremitiesCell carcinomaClinical featuresIncidence of SCCPrevalence of SCCDistinct subsetsDistinctive clinical featuresNumber of patientsBasal cell carcinomaClinical outcomesSquamous cellsBiologic behaviorSame patientGeneral populationPatientsCarcinomaStudy periodAdditional studiesDefinitive conclusionsIncidenceExtremitiesOutcomesTreatment
2012
Desmoplastic trichoepithelioma with perineural involvement: a series of seven cases
Jedrych J, Leffell D, McNiff JM. Desmoplastic trichoepithelioma with perineural involvement: a series of seven cases. Journal Of Cutaneous Pathology 2012, 39: 317-323. PMID: 22335590, DOI: 10.1111/j.1600-0560.2012.01876.x.Peer-Reviewed Original ResearchConceptsDesmoplastic trichoepitheliomaPerineural involvementDesmoplastic stromaMicrocystic adnexal carcinomaBasal cell carcinomaBenign epithelial proliferationsP75 neurotrophin receptorMiddle-aged womenBenign follicular tumorsCK20-positive cellsSmall dermal nervesAdnexal carcinomaCell carcinomaTumor recurrenceTypical presentationBasaloid epitheliumDermal nervesPerineural spaceNeurotrophin receptorBasaloid cellsEpithelial proliferationDermal proliferationDiffuse expressionFollicular tumorsPatients
2011
Indoor tanning and risk of early-onset basal cell carcinoma
Ferrucci LM, Cartmel B, Molinaro AM, Leffell DJ, Bale AE, Mayne ST. Indoor tanning and risk of early-onset basal cell carcinoma. Journal Of The American Academy Of Dermatology 2011, 67: 552-562. PMID: 22153793, PMCID: PMC3307842, DOI: 10.1016/j.jaad.2011.11.940.Peer-Reviewed Original ResearchConceptsEarly-onset basal cell carcinomaBasal cell carcinomaIndoor tanningCell carcinomaOdds ratioMultiple basal cell carcinomasBenign skin conditionsStrong risk factorConfidence intervalsMultivariate logistic regressionPotential recall biasYears of ageExposure-disease relationshipsIndoor tanning devicesAge of initiationRisk factorsBiopsy siteEpidemiologic studiesSkin conditionsReferent groupControl populationTanning devicesLogistic regressionRecall biasIndoor tannersHost Phenotype Characteristics and MC1R in Relation to Early-Onset Basal Cell Carcinoma
Ferrucci LM, Cartmel B, Molinaro AM, Gordon PB, Leffell DJ, Bale AE, Mayne ST. Host Phenotype Characteristics and MC1R in Relation to Early-Onset Basal Cell Carcinoma. Journal Of Investigative Dermatology 2011, 132: 1272-1279. PMID: 22158557, PMCID: PMC3305835, DOI: 10.1038/jid.2011.402.Peer-Reviewed Original ResearchConceptsDermatopathology databaseSkin reactionsCase statusBasal cell carcinoma incidenceMelanocortin 1 receptor gene variantsNon-synonymous variantsBenign skin conditionsBasal cell carcinomaReceptor gene variantsCarcinoma incidenceCell carcinomaBCC riskEpidemiologic studiesSelf-reported phenotypesLower riskSkin conditionsBCC casesSkin cancerOlder populationYoung individualsGene variantsPhenotype-genotype interactionsHost characteristicsPhenotype characteristicSkin color
2005
Mohs micrographic surgery: established uses and emerging trends.
Pennington BE, Leffell DJ. Mohs micrographic surgery: established uses and emerging trends. Oncology 2005, 19: 1165-71; discussion 1171-2, 1175. PMID: 16255133.Peer-Reviewed Original ResearchConceptsSquamous cell carcinomaBasal cell carcinomaMohs micrographic surgeryCell carcinomaMicrographic surgeryCommon cutaneous neoplasmsConventional surgical excisionExtramammary Paget's diseaseMicrocystic adnexal carcinomaMerkel cell carcinomaCutaneous neoplasmsPaget's diseaseResidual tumorSurgical excisionAdnexal carcinomaCommon cancerCutaneous tumorsSurgical techniqueDermatofibrosarcoma protuberansCarcinomaDeep marginTissue conservationSurgeryTumorsDiseasePTCH codon 1315 polymorphism and risk for nonmelanoma skin cancer
Asplund A, Gustafsson AC, Wikonkal NM, Sela A, Leffell DJ, Kidd K, Lundeberg J, Brash DE, Pontén F. PTCH codon 1315 polymorphism and risk for nonmelanoma skin cancer. British Journal Of Dermatology 2005, 152: 868-873. PMID: 15888139, DOI: 10.1111/j.1365-2133.2005.06464.x.Peer-Reviewed Original ResearchMeSH KeywordsCarcinoma, Basal CellCarcinoma, Squamous CellCodonGenetic Predisposition to DiseaseGenotypeHair ColorHumansLoss of HeterozygosityNeoplasm ProteinsPatched ReceptorsPatched-1 ReceptorPilot ProjectsPolymerase Chain ReactionPolymorphism, Single NucleotideReceptors, Cell SurfaceSkin NeoplasmsSkin PigmentationConceptsPro/Pro genotypeNonmelanoma skin cancerBasal cell carcinomaPTCH tumor suppressor geneSquamous cell carcinomaAllele frequency variationAllelic loss studiesTumor suppressor genePro genotypeSingle nucleotide polymorphismsAllelic lossGenomic DNANonrandom lossSuppressor geneCell carcinomaSwedish patientsEpithelial cell cancersLight pigmentationSkin cancerNucleotide polymorphismsMultiple basal cell carcinomasPro/LeuHuman populationPTCH geneAllele frequencies
2002
Human Cadaveric Allograft for Repair of Nasal Defects After Extirpation of Basal Cell Carcinoma by Mohs Micrographic Surgery
CARUCCI J, KOLENIK S, LEFFELL D. Human Cadaveric Allograft for Repair of Nasal Defects After Extirpation of Basal Cell Carcinoma by Mohs Micrographic Surgery. Dermatologic Surgery 2002, 28: 340-343. DOI: 10.1097/00042728-200204000-00008.Peer-Reviewed Original ResearchHuman cadaveric allograftMohs micrographic surgeryBasal cell carcinomaCadaveric allograftsCell carcinomaMicrographic surgeryHealing timeSkin cancerInfiltrative basal cell carcinomaNasal defectsAverage healing timeWound infectionHypergranulation tissueCancer histologyImmediate reconstructionResults FiveMedical statusPatientsExtensive proceduresUseful alternativeAllograftsSurgeryCarcinomaCosmesisCancerHuman Cadaveric Allograft for Repair of Nasal Defects After Extirpation of Basal Cell Carcinoma by Mohs Micrographic Surgery
Carucci JA, Kolenik SA, Leffell DJ. Human Cadaveric Allograft for Repair of Nasal Defects After Extirpation of Basal Cell Carcinoma by Mohs Micrographic Surgery. Dermatologic Surgery 2002, 28: 340-343. PMID: 11966793, DOI: 10.1046/j.1524-4725.2002.01143.x.Peer-Reviewed Original ResearchConceptsHuman cadaveric allograftMohs micrographic surgeryBasal cell carcinomaCadaveric allograftsCell carcinomaMicrographic surgeryHealing timeSkin cancerInfiltrative basal cell carcinomaNasal defectsAverage healing timeWound infectionHypergranulation tissueCancer histologyImmediate reconstructionMedical statusPatientsExtensive proceduresUseful alternativeAllograftsSurgeryCarcinomaCosmesisCancerDefect size
2000
The scientific basis of skin cancer
Leffell D. The scientific basis of skin cancer. Journal Of The American Academy Of Dermatology 2000, 42: s18-s22. PMID: 10607352, DOI: 10.1067/mjd.2000.103340.Peer-Reviewed Original Research