2024
Clinicopathologic Characteristics of MYC Copy Number Amplification in Breast Cancer.
Sun T, Golestani R, Zhan H, Krishnamurti U, Harigopal M, Zhong M, Liang Y. Clinicopathologic Characteristics of MYC Copy Number Amplification in Breast Cancer. International Journal Of Surgical Pathology 2024, 10668969241256109. PMID: 38839260, DOI: 10.1177/10668969241256109.Peer-Reviewed Original ResearchBreast cancerCopy number amplificationClinicopathological characteristicsAssociation with <i>TP53</i> mutation. InAssociated with invasive ductal carcinomaEstrogen receptor (ER)-negativeDisease-free survival timeGene copy number amplificationC-myc immunostainingNon-amplified tumorsTP53</i> mutationsTriple-negative statusMetastatic breast cancerInvasive ductal carcinomaMYC protein overexpressionBreast cancer patientsTriple-negativeDuctal carcinomaClinicopathological featuresGenetic abnormalitiesClinical dataImmunohistochemical studiesCancer patientsProtein overexpressionSurvival timeFibroepithelial Neoplasm with Hybrid Features of Benign Phyllodes Tumor, Juvenile Papillomatosis, and Juvenile Fibroadenoma: A Case Report.
Liu B, Mehrotra M, Kowtha L, Guan M, Houldsworth J, Baskovich B, Harigopal M. Fibroepithelial Neoplasm with Hybrid Features of Benign Phyllodes Tumor, Juvenile Papillomatosis, and Juvenile Fibroadenoma: A Case Report. International Journal Of Surgical Pathology 2024, 10668969241256112. PMID: 38839253, DOI: 10.1177/10668969241256112.Peer-Reviewed Original ResearchBenign phyllodes tumorPhyllodes tumorJuvenile fibroadenomaJuvenile papillomatosisFibroepithelial lesionsFibroepithelial neoplasmsFamily history of breast cancerHistory of breast cancerHyperplastic ductal epitheliumPapillary apocrine metaplasiaBreast cancer developmentMiddle-aged patientsProliferative breast tumorsHypoechoic solid massMicropapillary projectionsPreoperative biopsyBiphasic neoplasmPalpable massApocrine metaplasiaTumor featuresBreast tumorsCase reportDuctal epitheliumCellular fibroadenomaBreast cancerIdentification of Glandular (Acinar)/Tubule Formation in Invasive Carcinoma of the Breast: A Study to Determine Concordance Using the World Health Organization Definition.
Lo Y, Lester S, Ellis I, Lanjewar S, Laurini J, Patel A, Bhattarai A, Ustun B, Harmon B, Kleer C, Ross D, Amin A, Wang Y, Bradley R, Turashvili G, Zeng J, Baum J, Singh K, Hakima L, Harigopal M, Komforti M, Shin S, Abbott S, Jaffer S, Badve S, Khoury T, D'Alfonso T, Ginter P, Collins V, Towne W, Gan Y, Nassar A, Sahin A, Flieder A, Aldrees R, Ngo M, Edema U, Sapna F, Schnitt S, Fineberg S. Identification of Glandular (Acinar)/Tubule Formation in Invasive Carcinoma of the Breast: A Study to Determine Concordance Using the World Health Organization Definition. Archives Of Pathology & Laboratory Medicine 2024, 148: 1119-1125. PMID: 38244086, DOI: 10.5858/arpa.2023-0163-oa.Peer-Reviewed Original ResearchInvasive breast cancerWorld Health Organization definitionNottingham grading systemOrganization definitionMedian concordance rateMicropapillary carcinomaMucinous carcinomaInvasive carcinomaBreast pathologistsBreast cancerConcordance rateGrading systemCarcinomaTubulesPathologistsBreastConcordanceProfessor EllisCancerCases
2023
HER2 amplification in cases with low HER2 expression by immunohistochemistry (IHC): A Single Institutional Experience
Podany P, Golastani R, Zhan H, Liang Y, Harigopal M, Krishnamurti U. HER2 amplification in cases with low HER2 expression by immunohistochemistry (IHC): A Single Institutional Experience. American Journal Of Clinical Pathology 2023, 160: s9-s10. DOI: 10.1093/ajcp/aqad150.021.Peer-Reviewed Original ResearchLow HER2 expressionInvasive breast carcinomaIHC scoreHER2 expressionGroup 1Group 3HER2 immunohistochemistryHER2 testingGroup 2HER2 FISHGroup 4ASCO/CAP guidelinesGroup 5Single institutional experienceRecent clinical trialsStandard of careASCO/CAP 2018 guidelinesHER2/CEP17 ratioEquivocal HER2HER2 positivityTrastuzumab deruxtecanMore patientsCAP guidelinesPatient eligibilityCase reportPathological response in mucinous carcinoma of breast after neoadjuvant therapy - a multi-institutional study
Zhan H, Fineberg S, Podany P, Zeng J, Wang Y, Harigopal M, Singh K. Pathological response in mucinous carcinoma of breast after neoadjuvant therapy - a multi-institutional study. Human Pathology 2023, 142: 15-19. PMID: 37972873, DOI: 10.1016/j.humpath.2023.10.002.Peer-Reviewed Original ResearchConceptsNeoadjuvant endocrine therapyResidual tumour cellularityNeoadjuvant chemotherapyNeoadjuvant therapyMucinous carcinomaPathologic responseEndocrine therapyPathological responseMucin poolsBreast cancerEstrogen receptorTumor cellularityAcellular mucin poolsFavorable histologic subtypePreoperative adjuvant therapyRetrospective cohort studyComplete pathologic responseInvasive breast cancerNET groupMulti-institutional studyNeoadjuvant HER2Adjuvant therapyMC patientsCohort studyPathologic reviewBreast Carcinoma With Tubulopapillary Features Has a Distinct Immunophenotypic and Molecular Signature: A Report of Two Tumors and Literature Review
Carrasco-Tenezaca F, Moreira-Dinzey J, Manrai P, Bearse M, Burela S, Podany P, Singh K, Pareja F, Zheng J, Muscato N, Liang Y, Zhan H, Krishnamurti U, Dolezal D, Wang J, Harigopal M. Breast Carcinoma With Tubulopapillary Features Has a Distinct Immunophenotypic and Molecular Signature: A Report of Two Tumors and Literature Review. International Journal Of Surgical Pathology 2023, 32: 1037-1045. PMID: 37908113, DOI: 10.1177/10668969231209780.Peer-Reviewed Original ResearchBreast carcinomaTubulopapillary featuresHuman epidermal growth factor 2 (HER2) expressionBreast cancer histologic subtypesNonmetastatic breast carcinomaTriple-negative profileHigh-grade nuclear featuresTriple-negative carcinomasHigh-grade featuresMetastatic breast carcinomaGrowth factor 2 expressionFactor 2 expressionReports of tumorsMicropapillary projectionsNeoadjuvant therapyHistologic subtypeWorse prognosisFirst tumorPoor prognosisAdditional tumorsInvasive carcinomaEstrogen receptorCarcinomaPathogenic variantsTumorsThe correlation of ESR1 genetic aberrations with estrogen receptor and progesterone receptor status in metastatic and primary estrogen receptor-positive breast carcinomas
Moreira-Dinzey J, Zhan H, Rozenblit M, Krishnamurti U, Harigopal M, Zhong M, Liang Y. The correlation of ESR1 genetic aberrations with estrogen receptor and progesterone receptor status in metastatic and primary estrogen receptor-positive breast carcinomas. Human Pathology 2023, 137: 56-62. PMID: 37127079, DOI: 10.1016/j.humpath.2023.04.017.Peer-Reviewed Original ResearchConceptsMetastatic tumorsBreast carcinomaGenetic aberrationsPR statusPrimary tumorBreast cancerControl groupER/PR statusEstrogen receptor-positive breast carcinomasER-positive breast cancerER positivity rateMetastatic breast cancerProgesterone receptor statusMetastatic breast carcinomaMore liver metastasesPrimary breast carcinomaWild-type groupEstrogen receptor 1 geneReceptor 1 geneWild-type controlsLiver metastasesReceptor statusClinicopathological featuresER expressionControl tumorsAI-Powered Biomolecular-Specific and Label-Free Multispectral Imaging Rapidly Detects Malignant Neoplasm in Surgically Excised Breast Tissue Specimens.
Pandey R, Fournier D, Root G, Riccio M, Shirvalkar A, Zamora G, Daigneault N, Sapack M, Zhong M, Harigopal M. AI-Powered Biomolecular-Specific and Label-Free Multispectral Imaging Rapidly Detects Malignant Neoplasm in Surgically Excised Breast Tissue Specimens. Archives Of Pathology & Laboratory Medicine 2023, 147: 1298-1306. PMID: 36730476, DOI: 10.5858/arpa.2022-0228-oa.Peer-Reviewed Original ResearchMalignant neoplasmsPredictive valueBreast tissueBreast conservation surgeryNormal breast tissueNegative predictive valuePositive predictive valueInitial gross examinationFresh tissue samplesResection marginsConservation surgeryCosmetic outcomeBreast cancerIntraoperative usePathology evaluationGross examinationBreast specimensFrozen sectionsNeoplasmsTissue blocksTissue samplesLumpectomy specimensMargin assessmentSurgeon's handObjective toolSignificance of Myoepithelial Cell Layer in Breast Ductal Carcinoma in situ With Papillary Architecture With and Without Associated Invasive Carcinoma
Golestani R, Singh K, Karam P, Pinto M, Liang Y, Orsaria M, Harigopal M. Significance of Myoepithelial Cell Layer in Breast Ductal Carcinoma in situ With Papillary Architecture With and Without Associated Invasive Carcinoma. Clinical Breast Cancer 2023, 23: 91-100. DOI: 10.1016/j.clbc.2022.09.006.Peer-Reviewed Original ResearchSolid papillary carcinomaPapillary DCISInvasive carcinomaMyoepithelial cellsPapillary architecturePapillary carcinomaConventional invasive carcinomaFoci of DCISPapillary breast lesionsAssociated invasive carcinomaBreast ductal carcinomaME cellsMyoepithelial cell layerCell layerMedian followDistant metastasisHistologic evidenceDuctal carcinomaME cell layersPathology databasePapillary componentRetrospective searchResults MajorityCarcinomaDCISMulti-institutional Assessment of Pathologist Scoring HER2 Immunohistochemistry
Robbins C, Fernandez A, Han G, Wong S, Harigopal M, Podoll M, Singh K, Ly A, Kuba M, Wen H, Sanders M, Brock J, Wei S, Fadare O, Hanley K, Jorns J, Snir O, Yoon E, Rabe K, Soong T, Reisenbichler E, Rimm D. Multi-institutional Assessment of Pathologist Scoring HER2 Immunohistochemistry. Modern Pathology 2023, 36: 100032. PMID: 36788069, PMCID: PMC10278086, DOI: 10.1016/j.modpat.2022.100032.Peer-Reviewed Original ResearchConceptsOverall percent agreementHuman epidermal growth factor 2HER2 IHCReal-world settingEpidermal growth factor 2HER2-negative statusBreast cancer biopsiesCompanion diagnostic testsMulti-institutional assessmentGrowth factor 2Breast cancerImmunohistochemistry assaysCancer biopsiesHER2 immunohistochemistryPathologist concordanceIHCClinical standardsPercent agreementDiagnostic testsSubstantial discordanceERBB2 geneInterrater reliabilityPathologistsFactor 2Concordance
2022
AMACR Expression is a Potential Diagnostic Marker in Apocrine Lesions of Breast, and is Associated with High Histologic Grade and Lymph Node Metastases in Some Invasive Apocrine Breast Cancers
Lerner G, Tang H, Singh K, Golestani R, St Claire S, Humphrey P, Lannin D, Janostiak R, Harigopal M. AMACR Expression is a Potential Diagnostic Marker in Apocrine Lesions of Breast, and is Associated with High Histologic Grade and Lymph Node Metastases in Some Invasive Apocrine Breast Cancers. Clinical Breast Cancer 2022, 23: 199-210. PMID: 36577560, DOI: 10.1016/j.clbc.2022.11.012.Peer-Reviewed Original ResearchConceptsInvasive ductal carcinomaTriple-negative breast cancerHigh histologic gradeApocrine differentiationAMACR expressionEstrogen receptorApocrine DCISER-/PRHistologic gradeProgesterone receptorApocrine featuresBreast cancerHuman epidermal growth factor 2 (HER2) statusLack of ERDistant metastasis-free survivalDiagnostic markerInitial N stageLack estrogen receptorApocrine breast cancerLymph node metastasisNegative breast cancerAndrogen receptor mRNACoA racemase expressionBenign breast tissueBreast cancer cohortBreast implant‐associated anaplastic large‐cell lymphoma: A series of two case reports diagnosed by cytopathology
Hrones M, Harigopal M, Xu M, Abi‐Raad R. Breast implant‐associated anaplastic large‐cell lymphoma: A series of two case reports diagnosed by cytopathology. Diagnostic Cytopathology 2022, 51: e25-e27. PMID: 36066320, DOI: 10.1002/dc.25052.Peer-Reviewed Original ResearchConceptsBreast implant-associated anaplastic large cell lymphomaImplant-associated anaplastic large cell lymphomaRare T-cell lymphomaAnaplastic large cell lymphomaPeri-implant effusionT-cell lymphomaLarge cell lymphomaCommon presentationDefinite treatmentBetter prognosisCase reportCytopathologic findingsCytopathologic analysisImplant removalEarly diagnosisFluid collectionBreast implantsCytopathological examinationLymphomaReportPatientsPrognosisEffusionDiseaseDiagnosisPD-L1 protein expression in relation to recurrence score values in early-stage ER + breast cancer
Rozenblit M, Blenman K, Harigopal M, Reisenbichler E, Singh K, Qing T, Ibrahim E, Ramkissoon S, Asmelash S, Lin HK, Roberts M, Ross J, Huang RSP, Pusztai L. PD-L1 protein expression in relation to recurrence score values in early-stage ER + breast cancer. Breast Cancer Research And Treatment 2022, 196: 221-227. PMID: 36028784, DOI: 10.1007/s10549-022-06712-2.Peer-Reviewed Original ResearchConceptsPD-L1 positivityPD-L1 protein expressionPD-L1 expressionGrade 3 cancersPD-L1TIL scoreTumor gradeMultivariate analysisHigher PD-L1 positivityTumor-infiltrating lymphocyte countsConclusionPD-L1 expressionProtein expressionPD-L1 immunohistochemistryChi-square testResultsPD-L1T1 cancersLymphocyte countT3 tumorsIndependent predictorsTumor sizeLarge tumorsPositivity rateCell positivityBreast cancerGrade 2Increased Expression of LEF1 and β-Catenin in Invasive Micropapillary Carcinoma of the Breast is Associated With Lymphovascular Invasion and Lymph Node Metastasis
Dolezal D, Zhang X, Harigopal M. Increased Expression of LEF1 and β-Catenin in Invasive Micropapillary Carcinoma of the Breast is Associated With Lymphovascular Invasion and Lymph Node Metastasis. Applied Immunohistochemistry & Molecular Morphology 2022, 30: 557-565. PMID: 35960138, DOI: 10.1097/pai.0000000000001052.Peer-Reviewed Original ResearchConceptsInvasive micropapillary breast carcinomaLymph node metastasisLymphoid enhancer-binding factor 1Lymphovascular invasionNode metastasisNodal metastasisPrimary tumorΒ-cateninBreast tumorsRare breast cancer subtypeSmall tumor cell clustersLEF1 expressionMicropapillary breast carcinomaAggressive breast tumorsBasal-like carcinomasInvasive micropapillary carcinomaΒ-catenin expression levelsBreast cancer subtypesΒ-catenin expressionTumor cell clustersEnhancer-binding factor 1Disease relapseMicropapillary carcinomaBreast carcinomaHigh incidenceFurther Characterization of Clinicopathologic Features of Cystic Neutrophilic Granulomatous Mastitis
Liang Y, Zhan H, Krishnamurti U, Harigopal M, Sun T. Further Characterization of Clinicopathologic Features of Cystic Neutrophilic Granulomatous Mastitis. American Journal Of Clinical Pathology 2022, 158: 488-493. PMID: 35899981, DOI: 10.1093/ajcp/aqac074.Peer-Reviewed Original ResearchConceptsCystic neutrophilic granulomatous mastitisGranulomatous mastitisClinicopathologic characteristicsClinicopathologic featuresHigher Breast Imaging ReportingUnique infectious diseaseHospital-based cohortDistinct clinicopathologic featuresMass-like lesionCase-control studyData System scoreBreast Imaging ReportingPainful lesionsRadiologic studiesClinicopathologic profileSystem scoreImaging ReportingDemographic featuresInfectious diseasesPatientsLesionsDiseaseMastitisFurther characterizationSmokersEvaluation of TRPS1 Expression in Pleural Effusion Cytology Specimens With Metastatic Breast Carcinoma
Wang M, Stendahl K, Cai G, Adeniran A, Harigopal M, Gilani SM. Evaluation of TRPS1 Expression in Pleural Effusion Cytology Specimens With Metastatic Breast Carcinoma. American Journal Of Clinical Pathology 2022, 158: 416-425. PMID: 35760555, DOI: 10.1093/ajcp/aqac066.Peer-Reviewed Original ResearchConceptsTrichorhinophalangeal syndrome type 1Breast originMetastatic carcinomaTRPS1 expressionBreast primaryBreast carcinomaPrimary siteMC casesMetastatic breast carcinomaSquamous cell carcinomaPleural effusion cytologySyndrome type 1Cell block materialStrong nuclear expressionEffusion cytology specimensCell carcinomaUrothelial carcinomaIHC panelMalignant melanomaLung adenocarcinomaIHC stainingPositive stainingCytology specimensCarcinomaEffusion cytologyCOVID-19 & differential effects in twins: Insights from Placenta Pathology
Moriarty K, Yu M, Hussain N, Zgutka K, Sanders MM, Harigopal M, Wang J, Wang X, Hui P, Liu C, Sink D, Shields A. COVID-19 & differential effects in twins: Insights from Placenta Pathology. Placenta 2022, 124: 62-66. PMID: 35640456, PMCID: PMC9121647, DOI: 10.1016/j.placenta.2022.05.014.Peer-Reviewed Original ResearchConceptsSARS-CoV-2Perinatal lossCOVID-19Adverse pregnancy outcomesMaternal-fetal interfaceTime of infectionDifferential effectsPregnancy outcomesPremature deliveryFetal interfaceGestational agePlacenta pathologyTwin pregnanciesMembranous expressionFemale fetusesFetal sexViral detection methodsViral receptorsFemale twinsTissue resultsPregnancyPlacentaTask ForceSuccumbedFetusesDetection of SARS-CoV-2 in tissue: the comparative roles of RT-qPCR, in situ RNA hybridization, and immunohistochemistry
McHenry A, Iyer K, Wang J, Liu C, Harigopal M. Detection of SARS-CoV-2 in tissue: the comparative roles of RT-qPCR, in situ RNA hybridization, and immunohistochemistry. Expert Review Of Molecular Diagnostics 2022, 22: 559-574. PMID: 35658709, DOI: 10.1080/14737159.2022.2085508.Peer-Reviewed Original ResearchCytomorphologic features of SMARCA4‐deficient non–small cell lung carcinoma and correlation with immunohistochemical and molecular features
Sun T, Gilani SM, Podany P, Harigopal M, Zhong M, Wang H. Cytomorphologic features of SMARCA4‐deficient non–small cell lung carcinoma and correlation with immunohistochemical and molecular features. Cancer Cytopathology 2022, 130: 620-629. PMID: 35468657, DOI: 10.1002/cncy.22581.Peer-Reviewed Original ResearchConceptsNon-small cell lung carcinomaCell lung carcinomaCytomorphologic featuresLung carcinomaExtensive antibody panelHigh-grade featuresCommon cytologic featuresDifferent anatomic sitesVariable expressionMajority of casesSquamoid featuresCo-mutated genesUndifferentiated carcinomaImmunohistochemical profileGlandular featuresPapillary architectureAnatomic sitesCytologic featuresAggressive carcinomasClinical informationAntibody panelEpithelial markersScant cytoplasmCarcinomaNuclear enlargementExamination of Low ERBB2 Protein Expression in Breast Cancer Tissue
Fernandez AI, Liu M, Bellizzi A, Brock J, Fadare O, Hanley K, Harigopal M, Jorns JM, Kuba MG, Ly A, Podoll M, Rabe K, Sanders MA, Singh K, Snir OL, Soong TR, Wei S, Wen H, Wong S, Yoon E, Pusztai L, Reisenbichler E, Rimm DL. Examination of Low ERBB2 Protein Expression in Breast Cancer Tissue. JAMA Oncology 2022, 8: 1-4. PMID: 35113160, PMCID: PMC8814969, DOI: 10.1001/jamaoncol.2021.7239.Peer-Reviewed Original ResearchConceptsBreast cancer biopsiesT-DXdCancer biopsiesLarge randomized clinical trialsRandomized clinical trialsERBB2 protein expressionCentral pathology laboratoryBreast cancer tissuesAmerican Pathologists surveysStudy of concordanceTrastuzumab deruxtecanERBB2 positivityPatient populationClinical trialsScore 0Breast cancerImmunohistochemistry scoreCancer tissuesIHC assaysPatientsPathology laboratoryProtein expressionBiopsyIHCConcordance