About us

Medical and Scientific Team

Team Diagnostics

Dr. Sherif Ibrahim, MD, PhD.

Founder and Chief Medical Officer

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and lead Pathologist is recognized nationally as an expert in the field of Hematopathology and Flow Cytometric Diagnoses.Dr. Ibrahim previously held several positions at NYU School of Medicine and Hospitals (2001-2017), including Adjunct Professor, Director of Hematopathology/Molecular Pathology and Director of the Hematopathology Fellowship Program. He also served as a Hematopathology Consultant at Memorial Sloan-Kettering Cancer Center from 2008 to 2017.
He performed his Hematopathology Fellowship at the M D Anderson Cancer Center.

Dr. Ibrahim contributed to the scientific literature in the field of Hematology and Oncology more than 60 peer-reviewed articles and several book chapters and presentations in Hematopathology and Molecular Pathology.

Dr. Ibrahim is routinely engaged by other pathologists and physicians to render second opinions on the most difficult to diagnose leukemia and lymphoma cases.


Dr. Sarah Chaudhary, MD.

Board Certified Hematopathologist

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who has been at Cairo Diagnostics since August 2016.
Dr Chaudhary completed her AP/CP residency at Baystate Medical Center in Springfield, MA and pursued her passion of hematopathology by completing her fellowship at NewYork-Presbyterian/Columbia University Medical Center.
Since joining Cairo Diagnostics, Dr. Chaudhary has tremendous experience in Hematopathology and Flow Cytometry by seeing a large number of cases including many complex/rare entities.

Cairo Diagnostics - Dr. Konoplev

Dr. Sergej Konoplev

Board Certified in Hematopathology, Anatomic Pathology and Clinical Pathology

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Dr. Sergej Konoplev served as Professor of the Department of Hematology- The University of Texas MD Anderson Cancer Center in Houston, TX. He received his MD at St. Petersburg State I.P. Pavlov Medical University and his PhD at Federal Institute of Hematology and Blood Transfusion, St. Petersburg, Russian Federation. He continued his clinical residency in Internal Medicine from I.P. Pavlov State Medical Institute, St. Petersburg. After coming to the United States of America, Dr Sergej Konoplev completed his postdoctoral fellowship at The University of Texas MD Anderson Cancer Center, his residency in Anatomic and Clinical Pathology at the University of Cincinnati, Cincinnati, OH and The University of Texas Southwestern Medical Center in 2004. He went on to complete his fellowship in Hematopathology and Advanced Hematopathology at the University of Texas MD Anderson Cancer Center. Throughout his career, he has spent his time researching, mentoring, practicing and has
been recognized for his contribution on over 150 publications.

Dr. Dalia Abdel Azim, MD, PhD

Board Certified Hematopathologist and Molecular Genetics Pathologist

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 She received her PhD from the Department of Cancer Studies and Molecular Medicine, University of Leicester, UK in the field of Molecular Profiling of Lymphoma.
Dr. Azim did her residency training in Anatomic and Clinical Pathology at the University of South Alabama, 2015. She finished her training as a Hemtopathology fellow at the New York University (NYU) – Langone in 2016, followed by fellowship in Molecular Genetics Pathology at The University of Nebraska in 2017.
She served as the Director of Molecular Diagnostics and Hematopathologist at NYU-Winthrop University Hospital from 2017-2019 until joining Cairo Diagnostics.

Dr. Yi Sun

Board Certified

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Dr. Sun was previously the Director of the Special Coagulation Department at BioReference Labs. She has spent much of her career on clinical genomics developing several robust and cost-effective assays at Genpath/BioReference and Pathline Laboratories. She has provided broad technical and logistical oversight on projects in Molecular Oncology, Reproductive Genetics, and Infectious Disease by using multiple molecular technologies including Next Generation Sequencing (NGS) and microarray technologies. Dr. Sun received her PhD in Genetics and completed her fellowships at Rutgers University. Additionally, she received her Master’s degrees in Information Studies and Zoology. Dr. Sun has also authored numerous publications in scientific journals, as well as receiving 4 patents in the US. She has a certification of qualification as laboratory director in Molecular Oncology, Genetic Testing and Hematology from the New York State Department of Health.

Dr. Bixia Xiang, PhD, FACMGG.

Director of Cytogenetics and PGT-A

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and the Director of PGT-A Dept. of Cairo Diagnostics Laboratory.

Dr. Xiang previously held several positions at NexGenomics, HRC fertility (2015-2019), Ecahn School of Medcine at Mount Sinai (2015-2018), BayCare Medical Group (2014-2015), City of Hope Medical Center (2010-2013), University of Miami Medical center (2008-2010), Including Associate Professor, Director of Cytogenetics and Cytogenomics, Director of PGT-A. She has been served as a Medical Genetics Consultant at BGI since 2017.
Dr. Xiang is an ABMGG Board-Certified Cytogeneticist with over ten years’ experience in Cytogenetics of Oncology and Hematology and is a recognized expert in the field of arrayCGH clinical application on both Constitutional (Prenatal and Postnatal) and Cancer fields. She performed her Molecular Cytogenetics Fellowship at School of Medicine, Yale University.
Dr. Xiang contributed to the scientific literature in the field of Molecular Cytogenetics more than 40 peer-reviewed articles and presentations; Dr. Xiang is also an Ad Hoc Reviewer for several Molecular Cytogenetics journals.

Dr. Sung-hee Oh

Board Certified in Hematopathology, Clinical Pathology and Molecular Genetic Pathology

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Dr. Sung-hee Oh received her MD at Kyungpook National University, in Daegu Korea and her Master of Medicine at the University of Ulsan College of Medicine in Seoul Korea. She continued her clinical residency in Internal Medicine at UMMS- Baystate, Spring filed MA. Dr. Sung-hee Oh completed her postdoctoral fellowship at Vanderbilt University Medical Center Throughout her career, she has participated in presentations and workshops, researching, practicing and has been recognized for her contributions in publications, posters and abstracts.