IRF8 in Conjunction With CD123 and CD20 to Distinguish Lupus Erythematosus Panniculitis From Subcutaneous Panniculitis-like T-Cell Lymphoma
Wong J, Roy S, McNiff J, Xu M. IRF8 in Conjunction With CD123 and CD20 to Distinguish Lupus Erythematosus Panniculitis From Subcutaneous Panniculitis-like T-Cell Lymphoma. The American Journal Of Surgical Pathology 2023, 47: 1425-1431. PMID: 37767989, DOI: 10.1097/pas.0000000000002133.Peer-Reviewed Original ResearchConceptsSubcutaneous panniculitis-like T-cell lymphomaLupus erythematosus panniculitisPanniculitis-like T-cell lymphomaCase of SPTCLT-cell lymphomaPlasmacytoid dendritic cell differentiationPlasmacytoid dendritic cellsExpression of IRF8Dendritic cell differentiationCharacteristic curve analysisImportant clinical implicationsRegulatory factor 8Dendritic cellsCutaneous biopsyLymphoid aggregatesDiagnostic challengeImmunohistochemical panelImmunohistochemical expressionCD123CD20Distinct patientsClinical implicationsSubcutaneous fatDiagnostic testsPositive markersIRF8 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