Derek Sun, MD

Associate Professor
Director, Abdominal Imaging and Ultrasound Fellowship Program
HS Assoc Clinical Professor


Derek Sun, MD, is an Associate Clinical Professor of Radiology in the Abdominal Imaging subspecialty at the University of California, San Francisco. Dr. Sun received his medical degree from Albert Einstein College of Medicine, Bronx, New York, in 2008. In 2009, he completed a one-year internship at Long Island Jewish Medical Center. In 2013, Dr. Sun completed a four-year Diagnostic Radiology residency, serving as chief resident in 2012-2013 at Jacobi Medical Center, Albert Einstein College of Medicine. This was followed by an Abdominal Imaging fellowship at UCSF, completed in 2014. In August 2014, Dr. Sun accepted the Assistant Professor of Clinical Radiology in the Abdominal Imaging section at UCSF. In 2017, Dr. Sun accepted the Associate Fellowship Director position for the Abdominal Imaging and Ultrasound Fellowship at UCSF and in 2020, accepted the Fellowship Director and Director of Clinical Operations positions for Abdominal Imaging and Ultrasound. Dr. Sun is a strong advocate for intersectionality and equity in medicine for patients and healthcare workers.

Honors and Awards

Henry J. Kaiser Award Finalist for Excellence in Teaching, University of California, San Francisco, 2022
Hideyo Minagi Outstanding Teacher Award, University of California, San Francisco, 2022
Hideyo Minagi Outstanding Teacher Award, University of California, San Francisco, 2019


Sun DC, Lee JH. How to choose an abdominal imaging fellowship. Abdom Radiol (NY). 2021 12; 46(12):5454-5461.
Zhang TT, Chang WC, Wang ZJ, Sun DC, Ohliger MA, Yeh BM. Bowel Wall Visualization Using MR Enterography in Relationship to Bowel Lumen Contents and Patient Demographics. J Magn Reson Imaging. 2021 09; 54(3):728-736.
Hassan O, Sun D, Jha P. Imaging in Gender Affirmation Surgery. Curr Urol Rep. 2021 Jan 30; 22(2):14.
Chang AY, Sun DC, Ohliger MA, Abuzahriyeh T, Choi HH. Boba sign: a novel sign for floating balls within a mature cystic teratoma. Abdom Radiol (NY). 2020 09; 45(9):2931-2933.
Sugi MD, Sun DC, Menias CO, Prabhu V, Choi HH. Acute diverticulitis: Key features for guiding clinical management. Eur J Radiol. 2020 Jul; 128:109026.
Huynh K, Baghdanian AH, Baghdanian AA, Sun DS, Kolli KP, Zagoria RJ. Updated guidelines for intravenous contrast use for CT and MRI. Emerg Radiol. 2020 Apr; 27(2):115-126.
Marcus SG, Candia S, Kohli MD, Mongan J, Zagoria RJ, Behr SC, Sun D, Westphalen AC. Association between misty mesentery with baseline or new diagnosis of cancer: a matched cohort study. Clin Imaging. 2018 Jul - Aug; 50:57-61.
Winklhofer S, Lambert JW, Sun Y, Wang ZJ, Sun DS, Yeh BM. Pelvic Beam-Hardening Artifacts in Dual-Energy CT Image Reconstructions: Occurrence and Impact on Image Quality. AJR Am J Roentgenol. 2017 Jan; 208(1):114-123.
Handa P, Leibman AJ, Sun D, Abadi M, Goldberg A. Granulomatous mastitis: changing clinical and imaging features with image-guided biopsy correlation. Eur Radiol. 2014 Oct; 24(10):2404-11.