Michael R. Peterson, M.D., Ph.D.

Michael R. Peterson, M.D., Ph.D.

  • Associate Professor
  • M.D. - University of California, San Diego
  • Ph.D. - University of California, San Diego
  • Residency Training: University of California, San Diego
  • Board Certifications: Anatomic Pathology
  • Clinical Specialty: Gastrointestinal and Liver Pathology

Research Interests

  • Molecular biology and immunohistochemistry of solid tumors, with special emphasis on hepatocellular carcinoma.
  • Radio-pathological correlation of hepatocellular nodules in patient with cirrhosis.

Representative Publications

  1. Peterson M.R., Piao Z., Bazhenova L.A., Weidner N., Yi E.S. "Terminal Respiratory Unit Type Lung Adenocarcinoma Is Associated With Distinctive EGFR Immmunoreactivity And EGFR Mutations." Applied Immunohistochemistry and Molecular Morphology, In press.
  2. Peterson M.R., Piao Z., Weidner N., Yi E.S. "Strong PDGFRA Positivity Is Seen in GISTs But Not in Other Intraabdominal Mesenchymal Tumors: Immunohistochemical and Mutational Ana lyses." Applied Immunohistochemistry and Molecular Morphology, 2006;14(4):390-6.
  3. Peterson M.R., Noskoviak K.J, Newbury R. "CD5-Positive B-Cell Acute Lymphoblastic Leukemia." Pediatric and Developmental Pathology, 2007 Jan-Feb;10(1):41-5.
  4. Peterson M.R., Emery S.C., Yung G.L., Masliah E.,Yi E.S. "Epstein-Barr virus associated posttransplantation lymphoproliferative disorder following lung transplantation is more commonly of host origin." Archives of Pathology and Laboratory Medicine, 2006;130(2): 176-80
  5. Peterson M.R., Emr S.D. "The Class C Vps Complex Functions at Multiple Stages of the Vacuolar Transport Pathway." Traffic, 2001;2(7):476-86.
  6. Click here to search for Dr. Peterson's publications


Dr. Peterson received his Ph.D. in Biomedical Sciences in 2001 and his Doctor of Medicine in 2003, both from the University of California, San Diego. Notably, in 2005, he was the recipient of the David Jay Epstein Award for Research Excellence by a Pathology Resident for investigations regarding the autopsy findings in patients’ status post lung transplantation. From 2005-2006, Dr. Peterson completed the Kurt Benirschke fellowship in Reproductive Pathology. During this same time period, he was also the Chief Resident in Anatomic and Clinical Pathology at the UCSD Medical Center. He completed a fellowship in Surgical Pathology and Cytopathology at the UCSD Medical Center in June 2007. Dr. Peterson then joined the faculty of the Department of Pathology as an Assistant Clinical Professor in July 2007. His area of subspecialty is gastrointestinal and liver pathology, and he will be instrumental in our mission to maintain and grow clinical excellence in anatomic pathology.

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