Professor Reznek graduated with honours from the University of Cape Town in 1972, became a Fellow of the Royal College of Radiologists in 1980 and a Fellow of the Royal College of Physicians in 1990. He is the author or co-author of over 200 publications. He is a past Editor-in-Chief of Clinical Radiology, Section Editor of European Radiology, Editor of Cancer Imaging and on the editorial board of two other journals. He is co-founder and Past President of the International Cancer Imaging Society. He has served on the Education and Faculty Boards of the Royal College of Radiologists and been chairman of the Scientific Programme Committee. He has held Visiting Professorships in several countries and given eponymous lectures in the USA, China, and the UK.