2020
Cutaneous Involvement by Mantle Cell Lymphoma: Expanding the Spectrum of Histopathologic Findings in a Series of 9 Cases.
Panse G, Cowper S, Ko CJ, Subtil A. Cutaneous Involvement by Mantle Cell Lymphoma: Expanding the Spectrum of Histopathologic Findings in a Series of 9 Cases. American Journal Of Dermatopathology 2020, 42: 848-853. PMID: 32675465, DOI: 10.1097/dad.0000000000001742.Peer-Reviewed Case Reports and Technical NotesMeSH KeywordsAgedAged, 80 and overFemaleHumansLymphoma, Mantle-CellMaleMiddle AgedNeoplasms, Multiple PrimarySkin NeoplasmsConceptsMantle cell lymphomaCutaneous involvementCell lymphomaSystemic mantle cell lymphomaAggressive B-cell neoplasmSingle institutional seriesSame biopsy specimenSite of involvementMarginal zone lymphomaB-cell neoplasmsImmunoglobulin M expressionSurface IgM expressionInstitutional seriesSecond malignanciesSystemic involvementClinicopathologic featuresCutaneous lesionsSitu hybridization studiesBiopsy specimenHistopathologic findingsMetastatic melanomaFirst manifestationDirect immunofluorescenceHematolymphoid neoplasmsTissue manifestations
2017
Well‐differentiated neuroendocrine tumors in skin: Terminology and diagnostic utility of cytokeratin 5/6 and p63
Panse G, Cowper SE, Leffell DJ, Pulitzer M, Ko CJ. Well‐differentiated neuroendocrine tumors in skin: Terminology and diagnostic utility of cytokeratin 5/6 and p63. Journal Of Cutaneous Pathology 2017, 44: 557-562. PMID: 28417484, DOI: 10.1111/cup.12952.Peer-Reviewed Original ResearchConceptsCutaneous adnexal neoplasmsAdnexal neoplasmsNeuroendocrine tumorsAdnexal tumorsBenign skin adnexal tumorCutaneous adnexal tumorsAggressive metastatic diseaseLow-grade tumorsSkin adnexal tumorsMajority of casesMetastatic diseaseMetastatic adenocarcinomaCarcinoid tumorsCytokeratin 5/6Diagnostic challengeDifferential diagnosisImmunohistochemical stainsCK5/6Diagnostic utilityPrimary siteTumorsNeoplasmsFirst signWDNETsP63
2005
CD56 staining in Merkel cell carcinoma and natural killer‐cell lymphoma: magic bullet, diagnostic pitfall, or both?
McNiff JM, Cowper SE, Lazova R, Subtil A, Glusac EJ. CD56 staining in Merkel cell carcinoma and natural killer‐cell lymphoma: magic bullet, diagnostic pitfall, or both? Journal Of Cutaneous Pathology 2005, 32: 541-545. PMID: 16115052, DOI: 10.1111/j.0303-6987.2005.00378.x.Peer-Reviewed Original ResearchConceptsNatural killer cell lymphomaNK-cell lymphomasMerkel cell carcinomaCases of MCCCD56 positivityCell carcinomaDiagnostic pitfallsDiagnosis of lymphomaCD20 negativityDense inflammationInflamed biopsiesNK lymphomaHistologic featuresMagic bulletNeuroendocrine tumorsCell lymphomaCD56Crush artifactSensitive markerLymphomaAdditional casesCarcinomaPositivityCK20MNF116Cellular digital fibromas: distinctive CD34‐positive lesions that may mimic dermatofibrosarcoma protuberans
McNiff JM, Subtil A, Cowper SE, Lazova R, Glusac EJ. Cellular digital fibromas: distinctive CD34‐positive lesions that may mimic dermatofibrosarcoma protuberans. Journal Of Cutaneous Pathology 2005, 32: 413-418. PMID: 15953374, DOI: 10.1111/j.0303-6987.2005.00358.x.Peer-Reviewed Original Research
2003
Nephrogenic fibrosing dermopathy: the first 6 years
Cowper SE. Nephrogenic fibrosing dermopathy: the first 6 years. Current Opinion In Rheumatology 2003, 15: 785-790. PMID: 14569211, DOI: 10.1097/00002281-200311000-00017.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsNephrogenic fibrosing dermopathyRecent case reportsCase reportCutaneous fibrosing disorderYellow scleral plaquesDistinct clinical patternsDual immunohistochemical stainingAntiphospholipid antibodiesRenal insufficiencyClinical patternDual immunolabelingFibrosing disorderSystemic disordersClinical spectrumScleral plaquesDisease onsetEpidemiologic dataSpindle cellsImmunohistochemical stainingDisease triggersSkin conditionsDisease pathogenesisNormal skinRegistry projectDiagnostic tests
2002
An Investigation of Apoptosis in Androgenetic Alopecia
Cowper SE, Rosenberg AS, Morgan MB. An Investigation of Apoptosis in Androgenetic Alopecia. American Journal Of Dermatopathology 2002, 24: 204-208. PMID: 12140435, DOI: 10.1097/00000372-200206000-00003.Peer-Reviewed Original Research
1999
Expression of p-27 (kip1) in Nevi and Melanomas
Morgan M, Cowper S. Expression of p-27 (kip1) in Nevi and Melanomas. American Journal Of Dermatopathology 1999, 21: 121-124. PMID: 10218670, DOI: 10.1097/00000372-199904000-00002.Peer-Reviewed Original ResearchConceptsExpression of p27Melanocytic lesionsSpitz neviDistribution of immunoreactivityP27 labeling indexMinority of casesCell cycle inhibitory proteinsChart reviewMalignant melanocytic lesionsClinical historyDiagnostic challengeBiologic behaviorHistopathologic criteriaLabeling indexCompound neviLogistic regressionHuman neoplasmsNeviNuclear stainingLesionsMelanomaP27Inhibitory proteinAccurate distinctionSkin