 FACULTY RETIREMENTS

Christopher Dowd, MD Professor Emeritus, Radiology, Neurological Surgery, Neurology, Anesthesia, and Preoperative Care Co-Director of Birthmarks and Vascular Anomalies Center

Dr. Dowd specializes in the diagnosis, management and treatment of cerebrovascular diseases and vascular birthmarks. Dr. Dowd earned his medical degree from the University of Virginia, Charlottesville, and completed his diagnostic radiology at UC San Diego, followed by a fellowship in neuroradiology and interventional neuroradiology at UCSF.

Dr. Dowd has served as the Primary Investigator and Co-Investigator of many IRB/CHR approved research projects on topics related to his clinical practice such as endovascular treatment of intracranial aneurysms, subarachnoid hemorrhage-induced vasospasm, cutaneous vascular birthmarks and similar conditions. He has published 178 articles, 300 scientific abstracts, and 58 book chapters.

A selection of notable awards over the years includes recognition as a US News and World Report Top Doctor in 2012, Clinical Teacher of the Year in 2001 in the UCSF Department of Dermatology, and notation as an Honorary Overseas Member and First Honored Guest Lecturer for the British Skull Base Society.

Ronald Cohen, MD Clinical Professor, Radiology

Medical Director, Pediatric Diagnostic Imaging UCSF Benioff Children’s Hospital-Oakland

Dr. Cohen has been a physician at Benioff Children’s Hospital-Oakland since 1984. He received his medical degree at UC Davis followed by a diagnostic radiology residency at Stanford University and a fellowship in pediatric radiology at Children’s Hospital Medical Center in Cincinnati, OH.

His special interests include imaging of the digestive, urinary and reproductive systems, advanced applications of CT imaging, and imaging related to child abuse detection. Dr. Cohen has mentored pediatric radiology fellows for 25 years, and has served for a number of years as a mentor to radiology residents from Travis Air Force Base. During his career, he has engaged in teaching opportunities in Russia, Vietnam, Guatemala, Panama, Israel, Zambia, Zimbabwe. Since 1990, Dr. Cohen has sponsored an annual visiting lectureship honoring Hooshang Taybi, MD.

Outside of the reading room, Dr. Cohen is an avid cyclist and adventure traveler.

Ronald Zagoria, MD Professor

Emeritus, Section Chief,

Abdominal Imaging and Ultrasound, Vice Chair, Clinical Operations

Dr. Zagoria earned his medical degree at the University of Maryland School of Medicine followed by a diagnostic radiology residency and a fellowship in abdominal imaging and interventional radiology at Wake Forest University and Massachusetts General Hospital. Prior to joining UCSF in 2013, Zagoria served as chief of genitourinary imaging and intervention as well as executive vice chair for the radiology department at Wake Forest School of Medicine where he was on the faculty for 26 years.

In a storied career, a selection of notable awards include a Gold Medal from the Society for Abdominal Radiology in 2022, a Lifetime Service Award from the American Board of Radiology in 2015, Felson Lecturer at the Cincinnati College of Medicine in 2000, and numerous awards for teaching excellence over the years. Castle Connolly and U.S. News & World Report, among other national organizations, have repeatedly recognized Dr. Zagoria as one of the best doctors in America and specifically as a top doctor for cancer and a top radiologist.

Dr. Zagoria’s clinical interests include urologic oncology, urolithiasis and infertility. He specializes in image-guided tumor ablation for kidney cancer. He has given more than 300 lectures and presentations, and has written more than 300 published pieces, including textbooks, book chapters, journal articles and medical abstracts.

Having enjoyed a varied and active career as a mentor and educator, clinician, and researcher, Dr. Zagoria notes that his greatest successes are having a wonderful partnership with his wife of 39 years, Kat Zagoria, and raising two wonderful children, David and Michael.