Radiological Society of North America (IMAGE) Indiana University Caption RSNA's RadLex is a comprehensive medical lexicon (or ontology) for radiology, containing more than 30,000 terms. Credit RSNA Usage Restrictions Credit to RSNA License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.