2024
Pitfalls of PRAME Immunohistochemistry in a Large Series of Melanocytic and Nonmelanocytic Lesions With Literature Review
Turner N, Ko C, McNiff J, Galan A. Pitfalls of PRAME Immunohistochemistry in a Large Series of Melanocytic and Nonmelanocytic Lesions With Literature Review. American Journal Of Dermatopathology 2024, 46: 21-30. PMID: 37982498, DOI: 10.1097/dad.0000000000002584.Peer-Reviewed Original ResearchConceptsConventional malignant melanomaMalignant melanomaPRAME immunohistochemistryBorderline lesionsNonmelanocytic lesionsDysplastic neviAmerican Joint CommitteePathological tumor stageMalignant melanocytic proliferationsBanal melanocytic nevusUlceration statusInstitution experienceBreslow depthMean ageTumor stageClinicopathologic correlationConsecutive casesMale genderAtypical fibroxanthomaSevere atypiaJoint CommitteeLarge seriesAmbiguous melanocytic lesionsMelanocytic proliferationMalignant counterparts
2023
Association of Somatic ATP2A2 Damaging Variants With Grover Disease
Seli D, Ellis K, Goldust M, Shah K, Hu R, Zhou J, McNiff J, Choate K. Association of Somatic ATP2A2 Damaging Variants With Grover Disease. JAMA Dermatology 2023, 159: 745-749. PMID: 37195706, PMCID: PMC10193258, DOI: 10.1001/jamadermatol.2023.1139.Peer-Reviewed Original ResearchConceptsGrover's diseaseGD tissuesSomatic single nucleotide variantsControl tissuesRetrospective case seriesCase series studyAnnotation-dependent depletion scoreConsecutive patientsCase seriesKidney failureHistopathologic findingsAcantholytic disordersOrgan transplantationMAIN OUTCOMEBiopsy tissueSeries studyDarier's diseaseClinical diagnosisParticipant's DNAOlder individualsTissue DNADiseaseDisordersPatientsBiopsyIRF8 may be a useful marker for blastic plasmacytoid dendritic cell neoplasm, especially with weak CD123 expression
Tang H, Panse G, Braddock D, Perincheri S, Xu M, McNiff J. IRF8 may be a useful marker for blastic plasmacytoid dendritic cell neoplasm, especially with weak CD123 expression. Journal Of Cutaneous Pathology 2023, 50: 595-600. PMID: 37082914, DOI: 10.1111/cup.14439.Peer-Reviewed Original ResearchConceptsBlastic plasmacytoid dendritic cell neoplasmPlasmacytoid dendritic cell neoplasmDendritic cell neoplasmPunch biopsy specimenBiopsy specimenCell neoplasmsCase of BPDCNUseful markerTumor cellsTCL-1 expressionAtypical mononuclear cellsBone marrow involvementDiffuse dermal infiltrateDendritic cell lineagePotential diagnostic pitfallRegulatory factor 8TCL-1BPDCN casesCD123 expressionMarrow involvementDermal infiltrateCutaneous nodulesMyelodysplastic syndromeSkin nodulesMononuclear cells
2021
Epidermotropic metastasis of squamous cell carcinoma of the tonsil: A case report with molecular confirmation
Li P, Barbieri A, Walther Z, McNiff J, Panse G. Epidermotropic metastasis of squamous cell carcinoma of the tonsil: A case report with molecular confirmation. Journal Of Cutaneous Pathology 2021, 48: 1514-1519. PMID: 34302376, DOI: 10.1111/cup.14108.Peer-Reviewed Case Reports and Technical NotesConceptsSquamous cell carcinomaOropharyngeal squamous cell carcinomaCell carcinomaDe novo squamous cell carcinomaPrimary oropharyngeal squamous cell carcinomaTonsillar squamous cell carcinomaTargetable genetic aberrationsLesion biopsy specimensSkin biopsy specimenSkin lesion biopsy specimensMetastatic diseaseEpidermal involvementEpidermotropic metastasesMetastatic lesionsPoor prognosisBiopsy specimenCase reportClinical historyBiopsy specimensSecondary diseaseSkin lesionsTumor originMetastatic specimensMetastasisNeck skinDesmoplastic Trichoepithelioma With Pseudocarcinomatous Hyperplasia: A Folliculosebaceous Neoplasm in Young Persons
Wang MZ, McNiff JM, McCalmont TH, LeBoit PE. Desmoplastic Trichoepithelioma With Pseudocarcinomatous Hyperplasia: A Folliculosebaceous Neoplasm in Young Persons. American Journal Of Dermatopathology 2021, 43: 788-793. PMID: 33899770, DOI: 10.1097/dad.0000000000001922.Peer-Reviewed Original ResearchConceptsDesmoplastic trichoepitheliomaCell carcinomaImmunohistochemical profileMorphoeic basal cell carcinomaSquamous cell carcinomaMicrocystic adnexal carcinomaBasal cell carcinomaFollicular germinative cellsMedian ageBer-EP4Clinical manifestationsAdnexal carcinomaMalignant neoplasmsFibrotic stromaBasaloid cellsEpidermal hyperplasiaPseudocarcinomatous hyperplasiaMerkel cellsSurface epitheliumAccurate diagnosisCarcinomaTrichoepitheliomaGerminative cellsBasal layerHyperplasiaLichenoid dermatoses with pseudomelanocytic nests vs inflamed melanoma in situ: A comparative study
Panse G, McNiff JM. Lichenoid dermatoses with pseudomelanocytic nests vs inflamed melanoma in situ: A comparative study. Journal Of Cutaneous Pathology 2021, 48: 745-749. PMID: 33350494, DOI: 10.1111/cup.13945.Peer-Reviewed Original ResearchConceptsPseudomelanocytic nestsLichenoid dermatosesDermoepidermal junctionHistopathological featuresPagetoid scatterCytologic atypiaDifferent histopathological featuresSun-damaged skinSignificant cytologic atypiaLichenoid inflammationSolitary melanocytesLichenoid keratosisClinicopathological correlationBiopsy specimensNon-melanocytic lesionsDiagnostic pitfallsAtypical melanocytesDermatosesSingle melanocytesAtypiaMelanomaMelanocytesConfluent growthBenign process
2020
Discordant anti‐SARS‐CoV‐2 spike protein and RNA staining in cutaneous perniotic lesions suggests endothelial deposition of cleaved spike protein
Ko CJ, Harigopal M, Gehlhausen JR, Bosenberg M, McNiff JM, Damsky W. Discordant anti‐SARS‐CoV‐2 spike protein and RNA staining in cutaneous perniotic lesions suggests endothelial deposition of cleaved spike protein. Journal Of Cutaneous Pathology 2020, 48: 47-52. PMID: 32895985, DOI: 10.1111/cup.13866.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 spike proteinCOVID toesEccrine epitheliumEndothelial cellsSkin biopsiesSpike proteinReverse transcriptase polymerase chain reaction testingSARS-CoV-2 antibodiesPolymerase chain reaction testingSARS-CoV-2 RNAPotential pathogenetic mechanismsPositive immunohistochemical labelingSARS-CoV-2Endothelial depositionPathogenetic mechanismsImmunohistochemical stainingReaction testingImmunohistochemical labelingEccrine glandsRNA ISHImmunohistochemistrySpike RNAGold standardTissue sectionsBiopsyPerniosis during the COVID‐19 pandemic: Negative anti‐SARS‐CoV‐2 immunohistochemistry in six patients and comparison to perniosis before the emergence of SARS‐CoV‐2
Ko CJ, Harigopal M, Damsky W, Gehlhausen JR, Bosenberg M, Patrignelli R, McNiff JM. Perniosis during the COVID‐19 pandemic: Negative anti‐SARS‐CoV‐2 immunohistochemistry in six patients and comparison to perniosis before the emergence of SARS‐CoV‐2. Journal Of Cutaneous Pathology 2020, 47: 997-1002. PMID: 32745281, PMCID: PMC7436569, DOI: 10.1111/cup.13830.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 nucleocapsid proteinPerivascular lymphocytesImmunohistochemical stainingCOVID-19 pandemicSARS-CoV-2 immunohistochemistryNucleocapsid proteinSARS-CoV-2Inflammatory lesionsHistopathologic findingsIntravascular occlusionMicroscopic findingsPerniosisIntravascular materialLymphocytesLesionsPatientsStainingPandemicSuch casesCuffingHistopathologyCasesImmunohistochemistryFindingsProteinCutaneous Involvement in Plasma Cell Myeloma
Panse G, Subtil A, McNiff JM, Glusac EJ, Ko CJ, Galan A, Myung P, Xu ML. Cutaneous Involvement in Plasma Cell Myeloma. American Journal Of Clinical Pathology 2020, 155: 106-116. PMID: 32885235, DOI: 10.1093/ajcp/aqaa122.Peer-Reviewed Original ResearchConceptsPlasma cell myelomaCutaneous involvementSquamous cell carcinomaAmyloid depositionCell carcinomaCell myelomaCases of PCMBone marrow involvementCyclin D1 immunoreactivityDisease-related deathLight chain restrictionCCND1 gene rearrangementMarrow involvementSkin involvementClinicopathologic featuresCytomorphologic spectrumCutaneous lesionsPoor outcomeCommon immunophenotypeChain restrictionClinical dataCytogenetic findingsOlder individualsGene rearrangementsMyelomaEpidermolytic Acanthoma: Findings of a Large Retrospective Study
Roy SF, McNiff JM. Epidermolytic Acanthoma: Findings of a Large Retrospective Study. International Journal Of Gynecological Pathology 2020, 40: e4-e4. PMID: 33290356, DOI: 10.1097/pgp.0000000000000672.Peer-Reviewed Original Research
2019
Hypergranulotic dyscornification: 30 cases of a striking epithelial reaction pattern
Roy SF, Ko CJ, Moeckel GW, Mcniff JM. Hypergranulotic dyscornification: 30 cases of a striking epithelial reaction pattern. Journal Of Cutaneous Pathology 2019, 46: 742-747. PMID: 31157457, DOI: 10.1111/cup.13522.Peer-Reviewed Original ResearchConceptsBenign keratosesDistinctive histopathologic findingsHistological reaction patternEpidermolytic hyperkeratosisReaction patternsBowen's diseaseRetrospective reviewMean ageProminent granular layerHistopathologic findingsEpidermoid cystKeratin immunohistochemistryClinical impressionSeborrheic keratosisPositive stainingNeck areaAbnormal keratinizationKeratohyaline granulesUnique reaction patternReproducible findingsKeratosesCytoplasmic areaGranular layerHyperkeratosisPrevious reportsObservational Study Examining the Diagnostic Practice of Ki67 Staining for Melanocytic Lesions
Vyas NS, Charifa A, Desman GT, Goldberg M, Singh R, Phelps RG, McNiff JM. Observational Study Examining the Diagnostic Practice of Ki67 Staining for Melanocytic Lesions. American Journal Of Dermatopathology 2019, Publish Ahead of Print: &na;. PMID: 31233404, DOI: 10.1097/dad.0000000000001379.Peer-Reviewed Original ResearchMultinucleate cell angiohistiocytoma: A clinicopathologic study of 62 cases and proposed diagnostic criteria
Roy SF, Dong D, Myung P, McNiff JM. Multinucleate cell angiohistiocytoma: A clinicopathologic study of 62 cases and proposed diagnostic criteria. Journal Of Cutaneous Pathology 2019, 46: 563-569. PMID: 30927287, DOI: 10.1111/cup.13463.Peer-Reviewed Original ResearchConceptsMultinucleate cell angiohistiocytomaFollicular inductionDiagnostic criteriaPapillary dermal vesselsMononuclear inflammatory infiltrateHistologic diagnostic criteriaLarge case seriesSpecific histologic criteriaWnt/ß-cateninClinicopathologic studyPerifollicular fibrosisCase seriesHistopathologic evidenceInflammatory infiltrateUnderdiagnosed entityFibrohistiocytic originInflamed lesionsHistologic criteriaDermal vesselsHistopathologic entityDermatopathology laboratoryDermatofibromaß-cateninPossible alterationsFibrosis
2014
p40 is a more specific marker than p63 for cutaneous poorly differentiated squamous cell carcinoma
Alomari AK, Glusac EJ, McNiff JM. p40 is a more specific marker than p63 for cutaneous poorly differentiated squamous cell carcinoma. Journal Of Cutaneous Pathology 2014, 41: 839-845. PMID: 25263848, DOI: 10.1111/cup.12388.Peer-Reviewed Original ResearchConceptsSquamous cell carcinomaAtypical fibroxanthomaCell carcinomaNon-cutaneous squamous-cell carcinomaNuclear stainingNon-squamous tumorsGiant cell tumorCutaneous leiomyosarcomaExclusive nuclear stainingCell tumorsDiagnostic challengeCytokeratin MNF116Focal stainingMNF116Tumor cytoplasmLeiomyosarcomaDiagnostic accuracyControl casesSoft tissueSpecific markersP40StainingCarcinomaP63TumorsThe significance of eosinophils in hypertrophic lichen planus
Alomari A, McNiff JM. The significance of eosinophils in hypertrophic lichen planus. Journal Of Cutaneous Pathology 2014, 41: 347-352. PMID: 24325780, DOI: 10.1111/cup.12275.Peer-Reviewed Original Research
2013
Punctate pemphigus: an underreported direct immunofluorescence pattern
Ko CJ, McNiff JM. Punctate pemphigus: an underreported direct immunofluorescence pattern. Journal Of Cutaneous Pathology 2013, 41: 293-296. PMID: 24372009, DOI: 10.1111/cup.12272.Peer-Reviewed Original ResearchConceptsIntercellular depositionIntercellular IgG depositionDirect immunofluorescence studiesCases of pemphigusDirect immunofluorescence patternsDot-like patternIgG depositionPemphigus vulgarisDiagnostic findingsPemphigus foliaceusPemphigusImmunofluorescence patternImmunoglobulin GImmunofluorescence studiesPotential mechanismsIgGDIF studies
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
2004
Primary Cutaneous B-Cell Lymphoma Treated With Radiotherapy: A Comparison of the European Organization for Research and Treatment of Cancer and the WHO Classification Systems
Smith BD, Glusac EJ, McNiff JM, Smith GL, Heald PW, Cooper DL, Wilson LD. Primary Cutaneous B-Cell Lymphoma Treated With Radiotherapy: A Comparison of the European Organization for Research and Treatment of Cancer and the WHO Classification Systems. Journal Of Clinical Oncology 2004, 22: 634-639. PMID: 14966086, DOI: 10.1200/jco.2004.08.044.Peer-Reviewed Original ResearchConceptsCutaneous B-cell lymphomaPrimary cutaneous B-cell lymphomaLarge B-cellInitial biopsy specimensB-cell lymphomaFollicle center cellsB cellsOverall survivalBiopsy specimensFive-year relapse-free survivalEuropean OrganizationFive-year overall survivalCenter cellsRelapse-free survivalWHO classification systemExtracutaneous diseaseLocal radiotherapyIndolent coursePrimary outcomeInitial treatmentTreatment of cancerHistopathologic subtypePathologic classificationNoncutaneous sitesDLB
2001
Selective T-cell subset ablation demonstrates a role for T1 and T2 cells in ongoing acute graft-versus-host disease: a model system for the reversal of disease
Liu J, Anderson B, Robert M, McNiff J, Emerson S, Shlomchik W, Shlomchik M. Selective T-cell subset ablation demonstrates a role for T1 and T2 cells in ongoing acute graft-versus-host disease: a model system for the reversal of disease. Blood 2001, 98: 3367-3375. PMID: 11719376, DOI: 10.1182/blood.v98.12.3367.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell DeathCytokinesDisease Models, AnimalFlow CytometryGanciclovirGraft vs Host DiseaseGraft vs Leukemia EffectHematopoiesisHematopoietic Stem CellsInterleukin-2Interleukin-4Lymphocyte SubsetsMaleMiceMice, TransgenicPromoter Regions, GeneticSimplexvirusSpleenT-LymphocytesThymidine KinaseThymus GlandWeight GainConceptsDonor T cellsT cellsT2 cellsGVHD reactionsHost diseaseInterleukin-2Herpes simplex virus thymidine kinase gene transductionAllogeneic stem cell transplantationCytokine-producing T cellsPrevention of GVHDStem cell transplantationReversal of diseaseT cell deletionLater time pointsAcute graftCytokine polarizationOngoing GVHDClinical GVHDAntibody infusionPeak diseaseClinical effectsCell transplantationIL-4 promoterGVHDDeficient miceCerebral Mass Due to Neurocutaneous Melanosis: Eight Years Later
Schaffer J, McNiff J, Bolognia J. Cerebral Mass Due to Neurocutaneous Melanosis: Eight Years Later. Pediatric Dermatology 2001, 18: 369-377. PMID: 11737677, DOI: 10.1046/j.1525-1470.2001.01961.x.Peer-Reviewed Case Reports and Technical NotesConceptsCongenital melanocytic neviGiant congenital melanocytic nevusMagnetic resonance imagingNeurocutaneous melanosisCentral nervous system involvementExcellent long-term outcomesMedium-sized congenital melanocytic nevusMultiple satellite neviSymptomatic neurocutaneous melanosisNervous system involvementAbsence of malignancyLong-term outcomesRight temporal lobePotential surgical interventionAge 5 monthsAge 10 monthsT1-weighted imagesPerivascular collectionsSatellite neviAsymptomatic patientsEarly imagingSurgical interventionSurgical specimenSystem involvementHistologic examination