Contact Information
  • 800-826-HOPE (4673)
April Sorrell, M.D.
  • Assistant Professor
  • Staff Physician

Languages Spoken
  • English

Professional Experience

  • 2009, Staff physician, Pediatric Hematology/Hematopoietic Cell Transplantation, Department of Pediatrics, City of Hope, Duarte, CA
  • 2007 - 2009, Research Fellow, Clinical Cancer Genetics, City of Hope, Duarte, CA
  • 2007 - 2009, Staff physician and Assistant Professor, Pediatric Hematology-Oncology, Cedars Sinai Medical Center, Los Angeles, CA
  • 2001- 2007, Assistant Professor of Pediatrics, The Cancer Institute of New Jersey, RWJH-University of Medicine and Dentistry of New Jersey, Division of Pediatric Hematology-Oncology, Brunswick, NJ
  • 1999 - 2001, Staff physician, Pediatric Oncology, Parker Hughes Cancer Center, St. Paul, MN
  • 1997 - 1999, Assistant Professor of Pediatrics, University of South Carolina School of Medicine, Division of Pediatric Hematology/Oncology, Richland Memorial Hospital
  • 1994 - 1997, Pediatric Hematology/Oncology Fellowship, Children’s National Medical Center, Washington, DC
  • 1992 - 1994, Pediatric Residency, University of Maryland, Baltimore, MD
  • 1991 - 1992, Pediatric Internship, Sinai Hospital of Baltimore, Baltimore, MD


  • 2010, (anticipated) Masters of Science, Clinical and Biomedical Investigations, Keck School of Medicine at University of Southern California, Los Angeles, CA
  • 1991, M.D., University of Oklahoma, College of Medicine, Oklahoma City, OK
  • 2008, First Place Award, Outstanding Poster Presentation of “Biological Properties of a Novel AML1 Mutation in a Family with Familial Platelet Disorder/Acute Myeloid Leukemia Syndrome

Board Certifications/Licensure
  • 2007, California
  • 2000, American Board of Pediatrics, Hematology/Oncology, re-certification 2007
  • 1994, American Board of Pediatrics, re-certification 2008
  • 1991, Federation Licensing Examination


  • 2008, First Place Award, Outstanding Poster Presentation of “Biological Properties of a Novel AML1 Mutation in a Family with Familial Platelet Disorder/Acute Myeloid Leukemia Syndrome

  • 2008, Certificate completion of “Intensive Course in Cancer Risk Assessment,” Department of Clinical Cancer Genetics, City of Hope National Medical Center
  • 2007, 48th Annual Short Course in Medical and Experimental Mammalian Genetics (The Jackson Laboratory and Johns Hopkins)


  • American Society of Human Genetics
  • American Society of Hematology
  • American Society of Pediatric Hematology Oncology
  • American Academy of Pediatrics, Fellow


  • Rukhmi Bhat, Sebastien Malinge, Alan S. Gamis, April D. Sorrell, Joanne M. Hilden, Elisabeth Paietta, Martin S. Tallman and John D. Crispino (2009) “Mutational analysis of candidate tumor associated genes in Acute Megakaryoblastic Leukemia”
  • Linda C. Stork, Yousif Matloub, Emmett Broxson, Mei La, Rochelle Yanofsky, Harland Sather, Ray Hutchinson , Nyla A. Heerema, April D. Sorrell, Margaret Masterson, Archie Bleyer, and Paul S. Gaynon (2009) “Oral 6-Mercaptopurine vs. Oral 6-Thioguanine and Veno-Occlusive Disease in Children with Standard Risk Acute Lymphoblastic Leukemia: Report of the Children’s Oncology Group CCG-1952 Clinical Trial”
  • Norton A, Fisher C, Liu H, Wen O, Mundschau G, Fuster JL, Hasle H, Zeller B, Webb DK, O’Marcaigh A, Sorrell A, Hilden J, Gamis A, Crispino JD, Vyas P. (2007) “Analysis of JAK3, JAK2, and C-MPL mutations in transient myeloproliferative disorder and myeloid leukemia of Down syndrome blasts in children with Down syndrome”. Blood 110(3):1077-9, Aug 1, 2007
  • Matloub Y, Lindemulder S, Gaynon PS, Sather H, La M, Broxson E, Yanofsky R, Hutchinson R, Heerema NA, Nachman J, Blake M, Wells LM, Sorrell AD, Masterson M, Kelleher JF, Stork LC. (2006) “Intrathecal triple therapy decreases central nervous system relapse but fails to improve event-free survival when compared to intrathecal methotrexate: results of the Children's Cancer Group (CCG) 1952 study for standard-risk acute lymphoblastic leukemia. A report from the Children's Oncology Group”. Blood. Apr 11, 2006 [Epub ahead of print].
  • Prasad, R.S., Michaels, L.A., Roychowdri, S, Craig, V., Sorrell, A., Schonfeld, S. (2006) “Combined venous sinus angioplasty and low dose thrombolytic therapy for treatment of hemorrhagic transverse sinus thrombosis in a pediatric patient”. Journal of Pediatric Hematology and Oncology 28: 196-199, 2006.
  • Mukta Sharma, Todd A. Alonzo, April Sorrell, Robert B. Gerbing, Joanne M. Hilden, Robert J. Arceci, Gita Massey, John J. Doyle, Lisa Bayer, John P. Perentesis, Julie Ross, Franklin O. Smith, Russell Brynes, Jerry Hussong, Lois Hathaway, and Alan Gamis (2006) “Uniform Approach Better Defines Natural History of Transient Myeloproliferative Disorder (TMD) in Down Syndrome (DS) Neonates: Outcomes from Children’ Oncology Group(COG)Study A2971” Blood (ASH Annual Meeting Abstracts) 108: 376, Nov 2006
  • Lamb LS, Neuberg R, Welsh J, Best R, Stetler-Stevenson M, Sorrell A. (2005) “T-Cell Lymphoblastic Leukemia/Lymphoma Syndrome with Eosinophilia and Acute Myeloid Leukemia” Clinical Cytometry 65:37-41, 2005.
  • Stork LC, Sather H, Hutchinson R, Broxson EH, Matloub Y, Yanofsky R, Masterson M, Sorrell A, Wells L, La M, Blake M, Gaynon PS. (2002) “Comparison of Mercaptopurine with Thioguanine and IT Methotrexate with IT “Triples” in Children with Standard Risk (SR) ALL: Results of CCG-1952”. Blood 100(11): 36a, 2002 (presented at ASH meeting 12-02)
  • Stork LC, Broxson EH, Sather H, Gaynon P, Matloub YH, Yanofsky R, Sorrell A, Wells L, Masterson M, Hutchinson RJ, Blake M, Sokol RJ. (2002) “Oral 6-thioguanine causes late-onset splenomegaly and portal hypertension in a subset of children with ALL”. Gastroenterology 7-02 (presented at Digestive Diseases Week meeting, 5-02).


  • City of Hope | Main Campus (Duarte)
    1500 East Duarte Road
    Duarte, CA 91010