2024
Using Shame as a Signal to Talk about Suicide
Siegel J, Ko C. Using Shame as a Signal to Talk about Suicide. Clinical Chemistry 2024, 70: 786-788. PMID: 38441566, DOI: 10.1093/clinchem/hvae017.Peer-Reviewed Original ResearchPitfalls 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
Vascular-Targeted Therapy for Systemic Lupus Erythematosus–Associated Vasculitis
Xu S, Patrignelli R, Ramachandran S, Koumpouras F, Desir D, Ko C, Gehlhausen J. Vascular-Targeted Therapy for Systemic Lupus Erythematosus–Associated Vasculitis. JAMA Dermatology 2023, 159: 460-462. PMID: 36884229, DOI: 10.1001/jamadermatol.2023.0077.Peer-Reviewed Original ResearchCognitive bias in pathology, as exemplified in dermatopathology
Ko C, Glusac E. Cognitive bias in pathology, as exemplified in dermatopathology. Human Pathology 2023, 140: 267-275. PMID: 36906184, DOI: 10.1016/j.humpath.2023.03.003.Peer-Reviewed Original Research
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 casesCuffingHistopathologyCasesImmunohistochemistryFindingsProteinA detailed analysis of the distribution, morphology, and histopathology of complex purpura in hospitalized patients: A case series of 68 patients
Gehlhausen JR, Wetter DA, Nelson C, Ramachandran S, McNiff JM, Ko CJ. A detailed analysis of the distribution, morphology, and histopathology of complex purpura in hospitalized patients: A case series of 68 patients. Journal Of The American Academy Of Dermatology 2020, 84: 1188-1196. PMID: 32376433, DOI: 10.1016/j.jaad.2020.04.149.Peer-Reviewed Original ResearchConceptsSmall vessel vasculitisLeukocytoclastic vasculitisMicrovascular occlusionIgA vasculitisCase seriesCommon diagnosisSystemic diseaseDermatologic consultationHigh mortalityTertiary care centerMajority of patientsMedium vessel vasculitisBiopsy findingsHospitalized patientsCare centerRetrospective natureVasculitisDifferential diagnosisInpatient consultationsPurpuraClinical morphologyDiagnostic utilityPatientsInpatientsSuperficial vesselsDiltiazem-associated Photodistributed Hyperpigmentation.
Siegel J, Ko C. Diltiazem-associated Photodistributed Hyperpigmentation. The Yale Journal Of Biology And Medicine 2020, 93: 45-47. PMID: 32226335, PMCID: PMC7087047.Peer-Reviewed Original Research
2019
Histopathologic findings characteristic of CARD14‐associated papulosquamous eruption
Ring NG, Craiglow BG, Panse G, Antaya RJ, Ashack K, Ashack R, Faith EF, Paller AS, McNiff JM, Choate KA, Ko CJ. Histopathologic findings characteristic of CARD14‐associated papulosquamous eruption. Journal Of Cutaneous Pathology 2019, 47: 425-430. PMID: 31849081, DOI: 10.1111/cup.13633.Peer-Reviewed Original ResearchConceptsPityriasis rubra pilarisPapulosquamous eruptionHistopathologic featuresPlaque psoriasisAdult patientsFollicular pluggingClinicopathologic findingsLesional skinRetrospective studyPatientsCARD14PilarisPathogenic mutationsDermal papillaPsoriasisRange of findingsHistopathologicAcanthosisAcantholysisOrthokeratosisParakeratosisFindingsVisual perception, cognition, and error in dermatologic diagnosis: Diagnosis and error
Lowenstein EJ, Sidlow R, Ko C. Visual perception, cognition, and error in dermatologic diagnosis: Diagnosis and error. Journal Of The American Academy Of Dermatology 2019, 81: 1237-1245. PMID: 30797841, DOI: 10.1016/j.jaad.2018.12.072.Peer-Reviewed Original ResearchVisual perception, cognition, and error in dermatologic diagnosis: Key cognitive principles
Ko CJ, Braverman I, Sidlow R, Lowenstein EJ. Visual perception, cognition, and error in dermatologic diagnosis: Key cognitive principles. Journal Of The American Academy Of Dermatology 2019, 81: 1227-1234. PMID: 30797839, DOI: 10.1016/j.jaad.2018.10.082.Peer-Reviewed Original Research
2016
Keratoacanthoma Shares Driver Mutations with Cutaneous Squamous Cell Carcinoma
Lim YH, Fisher JM, Bosenberg MW, Choate KA, Ko CJ. Keratoacanthoma Shares Driver Mutations with Cutaneous Squamous Cell Carcinoma. Journal Of Investigative Dermatology 2016, 136: 1737-1741. PMID: 27283355, DOI: 10.1016/j.jid.2016.04.002.Peer-Reviewed Original Research
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
1998
Intraethnic Comparison of Eating Attitudes in Native Koreans and Korean Americans Using a Korean Translation of the Eating Attitudes Test
KO C, COHEN H. Intraethnic Comparison of Eating Attitudes in Native Koreans and Korean Americans Using a Korean Translation of the Eating Attitudes Test. The Journal Of Nervous And Mental Disease 1998, 186: 631-636. PMID: 9788640, DOI: 10.1097/00005053-199810000-00007.Peer-Reviewed Original Research