Elizabeth Berger, MD, MS, FACS
Assistant Professor of Surgery (Oncology, Breast)Cards
About
Research
Publications
2026
Racial and ethnic differences in breast-conserving surgery after neoadjuvant chemotherapy for HER2-positive and triple-negative breast cancer.
Hickey A, Sun F, Li F, Proussaloglou E, Berger E, Greenup R, Valero M. Racial and ethnic differences in breast-conserving surgery after neoadjuvant chemotherapy for HER2-positive and triple-negative breast cancer. Journal Of Clinical Oncology 2026, 44: e13724-e13724. DOI: 10.1200/jco.2026.44.16_suppl.e13724.Peer-Reviewed Original ResearchTriple-negative breast cancerBreast-conserving surgeryNon-Hispanic white womenNeoadjuvant chemotherapyStage II diseaseHER2-positiveBreast cancerHigher oddsII diseaseSurgical managementClinical stageReceipt of breast-conserving surgeryStage II-III breast cancerComorbidity scoreRace/ ethnicityWhite womenHER2-positive diseaseNational Cancer DatabaseEthnic differencesYear of diagnosisPacific Islander womenLow comorbidity scoreAssociated with significantly higher oddsMultivariate logistic regressionSignificantly higher oddsPatient perspectives on active surveillance and machine learning–driven risk stratification for low-risk breast cancer.
Sritharan D, Mooghali M, Zhou Y, Winer E, Aneja S, Greenup R, Richman I, Berger E. Patient perspectives on active surveillance and machine learning–driven risk stratification for low-risk breast cancer. Journal Of Clinical Oncology 2026, 44: e13776-e13776. DOI: 10.1200/jco.2026.44.16_suppl.e13776.Peer-Reviewed Original ResearchIndolent breast cancerOlder womenCancer careFocus groupsBreast cancerHistory of breast cancerPsychological impactLow-risk breast cancerEducational attainmentFocus group transcriptsNVivo qualitative research softwareCommunity-based settingsPopulation-based surveyQualitative research softwareDoctor-patient relationshipActive surveillanceHigh school degreeEarly-stage breast cancerRisk stratificationQuantity of lifePrimary careClinical decision-makingGroup transcriptsPatient perspectivePhysician recommendationPatient Out‐of‐Pocket Costs and Healthcare Utilization Related to Mastectomy vs Breast Conservation: A Claims‐Based Study
Proussaloglou E, Ren Y, Fayanju O, Blitzblau R, Berger E, Valero M, Hwang E, Wheeler S, Greenup R. Patient Out‐of‐Pocket Costs and Healthcare Utilization Related to Mastectomy vs Breast Conservation: A Claims‐Based Study. Journal Of Surgical Oncology 2026 PMID: 42144808, DOI: 10.1002/jso.70281.Peer-Reviewed Original ResearchBreast conservationBilateral mastectomySurgical groupMedian OOP costsOut-of-pocket costsUnilateral mastectomyOOP costsEffective surgical treatment optionMarketScan Commercial Claims databaseSurgical treatment optionsHealthcare utilizationBreast cancer surgeryCommercial claims databaseClaims-based studyPatient out-of-pocket costsOut-of-pocket (OOP) costsCancer surgeryTreatment optionsMastectomyClaims databaseIBM MarketScan commercial claims databaseBreastUtilities RelatedOutpatient visitsMultivariate regressionA Value Analysis of the National Accreditation Program for Breast Centers on Prices for Breast Care
Gupta P, Berger E, Leeds I, Mongiu A, Reddy V, Pantel H. A Value Analysis of the National Accreditation Program for Breast Centers on Prices for Breast Care. Journal Of Surgical Research 2026, 322: 163-170. PMID: 41985237, DOI: 10.1016/j.jss.2026.03.069.Peer-Reviewed Original ResearchConceptsNational Accreditation ProgramBreast centerNonaccredited facilitiesOffice visitsTreatment servicesAccreditation programHigh-quality careFacility typeHealth care facilitiesHealth care systemRetrospective cross-sectional analysisAll-Payer Claims DatabaseCross-sectional analysisFollow-up office visitsBreast careCare bundleCare facilitiesCare systemDiagnostic mammogramsAccreditation statusDescriptive statisticsDiagnostic servicesBreast diseaseQuality benchmarksWilcoxon rank sum testUse of Complementary and Alternative Medicine in the Management of Breast Cancer
Ayoade O, Caturegli G, Canavan M, Resio B, Berger E, Boffa D. Use of Complementary and Alternative Medicine in the Management of Breast Cancer. JAMA Network Open 2026, 9: e260337. PMID: 41770560, PMCID: PMC12954545, DOI: 10.1001/jamanetworkopen.2026.0337.Peer-Reviewed Original ResearchConceptsCohort studyManagement of breast cancerBreast cancerCohort study of dataMedical management of breast cancerTreated with CAMCox proportional hazards modelsMedical managementYear of diagnosisFemale patientsCombination of CAMProportional hazards modelTraditional therapiesAlternative medicineStudy of dataMain OutcomesEndocrine therapyNo treatmentCharlson Comorbidity IndexInsurance typeNonmedical personnelPrimary outcomeFacility typeSurvival timeHazards model
2025
Diagnostic yield of surveillance mammography among older women
Richman I, Lindsay M, Long J, Epstein E, Sheffrin M, Berger E. Diagnostic yield of surveillance mammography among older women. Journal Of The National Cancer Institute 2025, 118: 223-230. PMID: 41002168, PMCID: PMC12646037, DOI: 10.1093/jnci/djaf270.Peer-Reviewed Original ResearchSurveillance mammographyOlder womenBreast cancerHistory of breast cancerPositive predictive valueYears post-diagnosisSEER-Medicare dataLongitudinal cohort studySurveillance mammogramsHealth outcomesStratified analysisDiagnostic yieldPredictive valueSEER-MedicareMammographic surveillanceCancer diagnosisCohort studyPrimary breast cancerMammographyMammogramsOlder ageShort-term outcomesWomenOutcomesEven yearsRacial and ethnic disparities in conversion to mastectomy following lumpectomy
Khubchandani J, KC M, Dey P, Proussaloglou E, Valero M, Berger E, Park T, Gross C, Butler P, Fayanju O, Winer E, Golshan M, Greenup R. Racial and ethnic disparities in conversion to mastectomy following lumpectomy. Breast Cancer Research And Treatment 2025, 211: 99-110. PMID: 39937397, PMCID: PMC12303253, DOI: 10.1007/s10549-025-07625-6.Peer-Reviewed Original ResearchConceptsConversion to mastectomyNeoadjuvant chemotherapyBreast conservationStage 0-III breast cancerWhite womenBreast cancerBlack womenBreast cancer careNational Cancer DatabaseMultivariate logistic regression modelEvaluate contemporary trendsLogistic regression modelsCancer careImprove disparitiesEthnic disparitiesDiagnosis yearInitial lumpectomySocio-DemographicCancer DatabaseClinical factorsMastectomyLumpectomySurgeryResultsThe studyTreatment sequence
2024
ASO Visual Abstract: National Patterns of Hospital Admission Versus Home Recovery Following Mastectomy for Breast Cancer
Kim L, Moore M, Schneider E, Canner J, Ayyala H, Chen J, Anant P, Graetz E, Lynch M, Zanieski G, Gillego A, Valero M, Proussaloglou E, Berger E, Golshan M, Greenup R, Park T. ASO Visual Abstract: National Patterns of Hospital Admission Versus Home Recovery Following Mastectomy for Breast Cancer. Annals Of Surgical Oncology 2024, 31: 9113-9113. DOI: 10.1245/s10434-024-16259-9.Peer-Reviewed Original ResearchNational Patterns of Hospital Admission Versus Home Recovery Following Mastectomy for Breast Cancer
Kim L, Moore M, Schneider E, Canner J, Ayyala H, Chen J, Anant P, Graetz E, Lynch M, Zanieski G, Gillego A, Valero M, Proussaloglou E, Berger E, Golshan M, Greenup R, Park T. National Patterns of Hospital Admission Versus Home Recovery Following Mastectomy for Breast Cancer. Annals Of Surgical Oncology 2024, 31: 9088-9099. PMID: 39322830, DOI: 10.1245/s10434-024-16107-w.Peer-Reviewed Original ResearchHR patientsLymph nodesRate of neoadjuvant chemotherapyHospital admissionNational patterns of careEmergency departmentDecrease wound complicationsNeoadjuvant chemo-Hospital re-admissionNeoadjuvant chemotherapyIn-hospital admissionRate of reconstructionPerioperative outcomesPostoperative hematomaComplication ratePostoperative complicationsWound complicationsHome recoveryPatterns of careBreast cancerMastectomyEmergency room visitsMultivariate analysisComplicationsPatientsIncidence of Pathologic Nodal Disease in Clinically Node-Negative, Microinvasive or T1a Breast Cancers
Dey P, Kc M, Proussaloglou E, Khubchandani J, Kim L, Zanieski G, Park T, Lynch M, Gillego A, Valero M, Schneider E, Golshan M, Greenup R, Berger E. Incidence of Pathologic Nodal Disease in Clinically Node-Negative, Microinvasive or T1a Breast Cancers. Annals Of Surgical Oncology 2024, 31: 8821-8828. PMID: 39240394, DOI: 10.1245/s10434-024-16124-9.Peer-Reviewed Original ResearchTriple-negative breast cancerClinically node-negativePathologically node-negativePN+ diseaseNode-negativeBreast cancerYears of ageNodal diseaseHR-/HER2Significant comorbiditiesEpidermal growth factor receptor 2-positiveOdds of node positivityRate of nodal diseaseTriple-positive breast cancerTriple positive breast cancerEarly-stage breast cancerHR-positive/HER2-negativePathologic nodal diseasePathologic nodal positivityPredictors of pN+T1a breast cancerHR-/HER2+Sentinel node biopsyNational Cancer DatabasePathologic nodal stage
Academic Achievements & Community Involvement
Clinical Care
Overview
Clinical Specialties
Breast Surgical Oncology; Breast Oncology; Surgical Oncology
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Breast Cancer in Men
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Board Certifications
General Surgery
- Certification Organization
- AB of Surgery
- Original Certification Date
- 2019
Yale Medicine News
News & Links
Media
Smilow Shares: Breast Cancer Awareness Month: Early-Stage Breast Cancer
October 9, 2025
Moderated by: Rachel Greenup, MD, MPH
Presentations by:
Elizabeth Berger, MD, MS, FACS
Mariya Rozenblit, MD
Siba Haykal, MD, PhD, FRCS, FACS
News
- May 28, 2026
Yale Surgery Announces 2026 Transformational Educators Honor Roll
- March 20, 2026Source: WTNH News 8 (with Dr. Elizabeth Berger)
How artificial intelligence can aid in treating breast cancer
- March 09, 2026
Yale Cancer Center Experts Present Advances in Cancer Research at Major Surgical Meeting
- October 19, 2025Source: CT Patch
CT BHI Announces Recipients of 2025 Breast Cancer Research and Education Grants
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