Radiologist · Abdominal imaging · St. Louis
Daniel Mason, DO
I'm an advanced abdominal imaging fellow at Washington University's Mallinckrodt Institute of Radiology in St. Louis.
Patients: questions about your results go to the doctor who ordered the scan.
In short
My work has two aims: to keep deepening our understanding of abdominal disease, and to use technology to help radiologists become better, augmented radiologists.
For patients
Reading my report in your portal before your doctor calls? That's normal. Your doctor will explain what it means.
Will I meet you? Usually not. I read the scan your doctor ordered and write the report. I don't see patients in clinic or discuss results by email.
Your report may list me as "Daniel Mason, DO" or "Dr. Daniel Mason". DO means Doctor of Osteopathic Medicine; DOs are fully licensed physicians. A fellowship is an extra year of specialist training after residency.
What a radiologist does: RadiologyInfo.org (ACR and RSNA)
For physicians and colleagues
Path
- 2026–
- Advanced Abdominal Imaging Fellow, with informatics mini-fellowship (imaging AI, dictation), Mallinckrodt Institute of Radiology, Washington University
- 2022–26
- Diagnostic radiology residency, Tripler Army Medical Center and the VA, Honolulu; chief resident
- 2020–22
- General surgery residency, Prisma Health / University of South Carolina, Level 1 trauma center
- 2020
- DO, Midwestern University / Arizona College of Osteopathic Medicine
Leadership
- 2025–26
- Chief Resident, Tripler Army Medical Center
- Undated
- Radiology Liaison, Trauma Performance Improvement and Patient Safety Counsel, Tripler Army Medical Center
- 2023–24
- President, Hawaii Radiological Society Resident and Fellow Section
- 2022–23
- Vice President, Hawaii Radiological Society Resident and Fellow Section
- 2018–20
- Regional Liaison, AZCOM East Valley Region
- 2017–18
- First Vice President, AZCOM Student Government Association
- 2017–18
- Research Representative, Council of Osteopathic Student Government Presidents
Publications and presentations
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Article
Badrov P, Marcelo K, Mason D, Ching B. Differentiating fibroadipose vascular anomaly from suspected venous malformation with core needle biopsy: a case series. Radiol Case Rep. 2025;21(1):172–180. doi:10.1016/j.radcr.2025.09.060
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Chapter
Clair D, Mason D. Aorta and Iliac Interventions. In: Sarac TP, Kashyap VS, eds. Gateways in Vascular Surgery: An Operative Atlas. McGraw Hill; 2025.
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Exhibit
Mishra A, Mason D, Tork C, Wickley A. Artificial intelligence: what every radiologist should know. Education exhibit (PHEE-26), Radiological Society of North America Annual Meeting; Chicago, December 2024.
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Article
Al-Nakkash L, Mason D, Ismail N, et al. Exercise Training Prevents the Loss of Wall Thickness and Lowers Expression of Alzheimer's Related Proteins in 3xTg Mouse Jejunum. Int J Environ Res Public Health. 2022;19(21):14164. doi:10.3390/ijerph192114164
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Article
Rockwood S, Mason D, Lord R, Lamar P, Prozialeck W, Al-Nakkash L. Genistein diet improves body weight, serum glucose and triglyceride levels in both male and female ob/ob mice. Diabetes Metab Syndr Obes. 2019;12:2011–2021. doi:10.2147/DMSO.S216312
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Poster
Mason D, Tullot T, Eckman DM. Automated Image Analysis on the Effects of Human Amniotic Fluid Derived Stem Cells on Rodent Kidney Structures in Acute Kidney Injury. Kenneth A. Suarez Research Day; Glendale, AZ, April 2018.