Kojo Elenitoba-Johnson, MD

Peter C. Nowell, M.D. Professor of Pathology and Laboratory Medicine
Perelman School of Medicine at the University of Pennsylvania 
Director, Center for Personalized Diagnostics
Director, Division of Precision and Computational Diagnostics

Contact InformationDepartment of Pathology and Laboratory Medicine
Perelman School of Medicine at the University of Pennsylvania
609 Stellar-Chance
422 Curie Blvd.
Philadelphia, PA, 19104-6100
Office: 215-898-8198
Fax: 215-898-9969


Specialty Division

Precision and Computational Diagnostics

Itmat Expertise

Molecular pathogenesis, biomarkers and therapeutic targets of malignant lymphoid neoplasia


MD (Medicine), College of Medicine, University of Lagos and Lagos University Teaching Hospital, 1988

Specialty Certification

Educational Commission for Foreign Medical Graduates Certification (ECFMG), 1988
Diplomate of American Board of Pathology (Combined Anatomic Pathology and
Clinical Pathology), 1996
Diplomate of American Board of Pathology (Hematology), 1998
New York State Certification of Qualification for Molecular Oncology and Hematopathology, 1998
Diplomate of American Board of Pathology (Molecular Genetic Pathology), 2001
New York State Department of Health, Certificate of Qualification for Laboratory Director for Hematology, Histopathology General and Oncology Molecular and Cellular Tumor Markers, 2008

Postgraduate Training

Residency, Anatomic and Clinical Pathology, Brown University School of Medicine, Providence, Rhode Island, 1991-1995
Chief Resident, Department of Pathology, Brown University School of Medicine, Providence, RI, 1992-1994
Fellowship, Hematopathology, Lab of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 1995-1997
Leadership Development for Physicians in Academic Health Centers, Harvard School of Public Health, Cambridge, MA, 2012-2012
Linkage Leadership Academy, University of Michigan, MA, 2013-2013

Awards and Honors

“Concepts in Molecular Pathology”, American Society of Investigative Pathology Scholarship, 1993
Outstanding Graduating Resident Award, Brown University Residency Training Program, 1995
Pathologist in Training Award, Society for Hematopathology, 1998
Outstanding Teaching Award in Anatomic Pathology, University of Utah Department of
Pathology, 1999
Best Doctors in America, 2003-2018
Outstanding Teaching Award in Anatomic Pathology, University of Utah Department of
Pathology, 2003
Ramzi Cotran Young Investigator Award, United States and Canadian Academy of Pathology, 2006
Finalist, Burroughs Welcome Fund Clinical Scientist Award in Translational Research, 2007
Henry C. Bryant Endowed Professorship, Department of Pathology, University of Michigan, 2011
League of Research Excellence, University of Michigan, 2011
Elected Member, American Society for Clinical Investigation Society, 2011
American Society for Investigative Pathology Outstanding Investigator Award (formerly the
ASIP Amgen, Pfizer, Warner-Lambert-Parke-Davis Award), 2012
Elected Member, American Association of University Pathologists (PLUTO Society), 2013
Peter C. Nowell, M.D., Endowed Professorship, Perelman School of Medicine, University of Pennsylvania Health System, 2015
Member-John Morgan Society of the University of Pennsylvania, 2016
President-Elect/Association for Molecular Pathology, 2016-2017
Member - Interurban Clinical Club, 2016
The William L. Gerald Award of Memorial Sloan Kettering Cancer Center, 2019
Professor Ayodele Awojobi Educational Service Award - C.M.S. Grammar School Lagos, 2021

Memberships and Professional Organizations

American Society for Clinical Pathology, 1991 - Present
New England Pathology Residents’ Society, 1992 - 1993
United States and Canadian Academy of Pathology, 1995 - Present
American Society of Hematology, 1997 - Present
Association for Molecular Pathology, 1997 - Present
Society for Hematopathology/European Association for Haematopathology, 1998 - Present
American Society for Investigative Pathology, 2001 - Present
National Institutes of Health, National Cancer Institute, 2003 - Present
American Society for Biochemistry and Molecular Biology, 2005 - Present
Michigan Society of Pathologists, 2006 - Present
Lymphoma Research Foundation, 2007 - Present
Department of Health and Human Services, Food and Drug Administration (FDA), 2008 - 2023
Netherlands Cancer Institute, 2009 - 2009
National Institutes of Health Center for Scientific Review, 2010 - 2014
American Society of Clinical Investigation, 2011 - Present
National Institutes of Health, Bethesda, MD, 2013 - 2018
American Association for Cancer Research, 2014 - Present
International Lymphoma Study Group, 2015 - Present
Interurban Clinical Club, 2016 - Present
National Cancer Policy Forum of The National Academies of Sciences, Engineering and Medicine, 2017 - 2020
United States and Canadian Academy of Pathology, 2018 - 2022
Memorial Sloan Kettering Cancer Center, 2020 - Present
American Association of Clinical Chemistry, 2021 - Present

Web Links

Selected Publications

Optimization of Sources of Circulating Cell-Free DNA Variability for Downstream Molecular Analysis

Jacob E Till, Taylor A Black, Caren Gentile, Aseel Abdalla, Zhuoyang Wang, Hareena K Sangha, Jacquelyn J Roth, Robyn Sussman, Stephanie S Yee, Mark H O'Hara, Jeffrey C Thompson, Charu Aggarwal, Wei-Ting Hwang, Kojo S J Elenitoba-Johnson, Erica L Carpenter, J Mol Diagn 21(): S1525-1578, 2021, PMID:34454115

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International evidence-based consensus diagnostic and treatment guidelines for unicentric Castleman disease

van Rhee F, Oksenhendler E, Srkalovic G, Voorhees P, Lim M, Dispenzieri A, Ide M, Parente S, Schey S, Streetly M, Wong R, Wu D, Maillard I, Brandstadter J, Munshi N, Bowne W, Elenitoba-Johnson KSJ, Fossä A, Lechowicz MJ, Chandrakasan S, Pierson SK, Greenway A, Nasta S, Yoshizaki K, Kurzrock R, Uldrick TS, Casper C, Chadburn A, Fajgenbaum DC, Blood Adv 4(23): 6039-50, 2020, PMID:33284946

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ACCELERATE: A patient-powered natural history study design enabling clinical and therapeutic discoveries in a rare disorder

Pierson SK, Khor JS, Ziglar J, Liu A, Floess K, NaPier E, Gorzewski AM, Tamakloe MA, Powers V, Akhter F, Haljasmaa E, Jayanthan R, Rubenstein A, Repasky M, Elenitoba-Johnson KSJ, Ruth J, Jacobs B, Streetly M, Angenendt L, Patier JL, Ferrero S, Zinzani PL, Terriou L, Casper C, Jaffe E, Hoffman C, Oksenhendler E, Fosså A, Srkalovic G, Chadburn A, Uldrick TS, Lim M, van Rhee F, Fajgenbaum DC, Cell Rep Med 1(99): , 2020, PMID:33377129

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Mastermind: A Comprehensive Genomic Association Search Engine for Empirical Evidence Curation and Genetic Variant Interpretation.

Chunn LM, Nefcy DC, Ritter RW, Tarpey RP, Chuahan G, Lim MS, Elenitoba-Johnson KSJ, Schwartz SA and Kiel, MJ., Front Genet. 11(): , 2020, PMID:33281875

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FBXW7 Triggers Degradation of KMT2D to Favor Growth of Diffuse Large B-cell Lymphoma Cells.

Saffie R, Zhou N, Rolland D, Önder Ö, Basrur V, Campbell S, Wellen KE, Elenitoba-Johnson KSJ, Capell BC, Busino L., Cancer Res 80(12): 2498-2511, 2020, PMID:32350066

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The mechanism of cancer drug addiction in ALK-positive T-Cell lymphoma

Rajan SS, Amin AD, Li L, Rolland DC, Li H, Kwon D, Kweh MF, Arumov A, Roberts ER, Yan A, Basrur V, Elenitoba-Johnson KSJ, Chen XS, Puvvada SD, Lussier YA, Bilbao D, Lim MS, Schatz JH, Oncogene 39(10): 2103-2117, 2020, PMID:31804622

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Advancing Biomarker Development Through Convergent Engagement: Summary Report of the 2nd International Danube Symposium on Biomarker Development

Lim MS, Beyer T, Babayan A, Bergmann M, Brehme M, Buyx A, Czernin J, Egger G, Elenitoba-Johnson KSJ, Gückel B, Jačan A, Haslacher H, Hicks RJ, Kenner L, Langanke M, Mitterhauser M, Pichler BJ, Salih HR, Schibli R,Schulzl S, Simecek J. Simon J, Soares MO, Stelzl U, Wadsak W, Zatloukal K, Zeitlinger M, Hacker M., Mol Imaging Biol 22(1): 47-65, 2020, PMID:31049831

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Enabling precision oncology through precision diagnostics

Brown NA, Elenitoba-Johnson KSJ, Annu Rev Pathol 15(): 97-121, 2020, PMID:31977297

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Impact of genetics on mature lymphoid leukemias and lymphomas

Bailey NG, Elenitoba-Johnson KSJ, Cold Spring Harb Perspect Med 10(8): , 2020, PMID:31932467

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What is new in mature T-cell leukemias?

Bailey NG, Elenitoba-Johnson KSJ, Semin Diagn Pathol 37(1): 72-78, 2020, PMID:31917110

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