Dorothy Shum, MD

HS Clinical Professor
Chief of Ultrasound at ZSFG
HS Clinical Professor


Dorothy Shum, MD, is an Associate Clinical Professor in the Ultrasound Section in the Department of Radiology at the University of California, San Francisco, and she is also the chief of the ultrasound section at Zuckerberg San Francisco General Hospital (ZSFG). Dr. Shum is fellowship trained in abdominal imaging with additional subspecialty training in ultrasound. Dr. Shum received her medical degree from Brown Medical School, Rhode Island in 2005, and completed her residency at Kaiser Permanente Medical Center, Department of Diagnostic Imaging in Los Angles, California in 2010, followed by a fellowship in Advanced Body Imaging at the Keck School of Medicine of USC, Los Angeles in 2011.

Clinically, Dr. Shum’s time is divided between UCSF and SFGH where she practices diagnostic ultrasound, obstetrical care including participation with the UCSF Fetal Treatment Center assisting in imaged-guided procedures and intraoperative localization. She is the co-author of a significant publication that has appeared in the American Journal of Roentgenology.


Diagnostic ultrasound, obstetrical care, diagnostic ultrasound, obstetrical care

Professional Interests:
Body MRI and ultrasound for onocologic imaging, hepatobiliary imaging, female pelvis imaging

Education and Training:
• Medical School: Brown Medical School, Rhode Island
• Internship: Kaiser Permanente Medical Center
• Residency: Kaiser Permanente Medical Center Department of Diagnostic Imaging, Los Angeles - Chief Resident
• Fellowship: Keck School of Medicine University of Southern California - Advanced Body Imaging
• ABR Board Certified in Diagnostic Radiology
• CA X-Ray/Fluoroscopy Supervisor and Operator
• DEA License
• CA Medical License

Honors and Awards

Summa Cum Laude Award, University of California, Los Angeles, 1998


Choi HH, Kim S, Shum DJ, Huang CY, Shui A, Fox RK, Khalili M. Assessing Adherence to US LI-RADS Follow-up Recommendations in Vulnerable Patients Undergoing Hepatocellular Carcinoma Surveillance. Radiol Imaging Cancer. 2024 Jan; 6(1):e230118.
Ye AQ, Reyes MF, Lester F, Ye J, Umetsu S, Poder L, Shum DJ, Choi HH. Boba sign with a twist - A variant presentation of a mature cystic teratoma complicated by torsion and rupture. Clin Imaging. 2022 Mar; 83:28-32.
Morgan TA, Jha P, Feldstein VA, Shum DJ, Poder L. US-guided Interventions to Diagnose and Treat Gynecologic and First-Trimester Disease. Radiographics. 2021 Oct; 41(6):E183-E184.
Strachowski LM, Choi HH, Shum DJ, Horrow MM. Pearls and Pitfalls in Imaging of Pelvic Adnexal Torsion: Seven Tips to Tell It's Twisted. Radiographics. 2021 May-Jun; 41(3):E97.
Strachowski LM, Choi HH, Shum DJ, Horrow MM. Pearls and Pitfalls in Imaging of Pelvic Adnexal Torsion: Seven Tips to Tell It's Twisted. Radiographics. 2021 Mar-Apr; 41(2):625-640.
Vyas S, Choi HH, Whetstone S, Jha P, Poder L, Shum DJ. Ultrasound features help identify patients who can undergo noninvasive management for suspected retained products of conception: a single institutional experience. Abdom Radiol (NY). 2021 06; 46(6):2729-2739.
Chapman MC, Soares BP, Li Y, Shum DJ, Glenn OA, Glastonbury CM, Courtier JL. Congenital Oral Masses: An Anatomic Approach to Diagnosis. Radiographics. 2019 Jul-Aug; 39(4):1143-1160.
Jha P, Rabban J, Chen LM, Goldstein RB, Weinstein S, Morgan TA, Shum D, Hills N, Ohliger MA, Poder L. Placenta accreta spectrum: value of placental bulge as a sign of myometrial invasion on MR imaging. Abdom Radiol (NY). 2019 07; 44(7):2572-2581.
Shum DJ, Clifton MS, Coakley FV, Hornberger LK, Joe BN, Goldstein RB, Harrison MR. Prenatal tracheal obstruction due to double aortic arch: a potential mimic of congenital high airway obstruction syndrome. AJR Am J Roentgenol. 2007 Jan; 188(1):W82-5.
Nakanishi A, Shum D, Morioka H, Otsuka E, Kasamatsu H. Interaction of the Vp3 nuclear localization signal with the importin alpha 2/beta heterodimer directs nuclear entry of infecting simian virus 40. J Virol. 2002 Sep; 76(18):9368-77.
Li PP, Nakanishi A, Shum D, Sun PC, Salazar AM, Fernandez CF, Chan SW, Kasamatsu H. Simian virus 40 Vp1 DNA-binding domain is functionally separable from the overlapping nuclear localization signal and is required for effective virion formation and full viability. J Virol. 2001 Aug; 75(16):7321-9.