About Radiopaedia.org

Radiopaedia.org is a rapidly growing, peer-reviewed open-edit radiology resource, compiled by radiologists and other health professionals from across the globe.


Radiopaedia’s mission is to create the best radiology reference the world has ever seen and to make it available for free, forever, for all.


All we need to accomplish this is for you to share some of your expertise and a few of your precious moments. By pooling our collective knowledge and experience, we can make a real difference in how people all over the world are imaged and diagnosed. Every new article, every case, and every correction counts. Signing up is free and contributing your first edit will only take you a few minutes. 

Sign up now 


Supporting Continuing Medical Education

Radiopaedia's CME mission is to educate radiologists and other health specialists in all areas pertaining to the practice of medical imaging. Through our reference articles, cases, multiple-choice questions and our various courses and learning pathways, we aim to not only improve learners’ knowledge but more importantly translate this knowledge into tangible gains in personal competence and performance that can be applied to everyday clinical practice. 
We endeavor to provide...

  • concise and up-to-date reference material with an emphasis on medical imaging free from commercial influence or bias
  • illustrative examples form all relevant modalities of typical as well as unusual presentations of all human afflictions presented in a way that is as close as possible to that encountered in routine clinical practice
  • a variety of learning formats appropriate to each topic to enable readers to best incorporate new knowledge into their daily practice
  • fair and equitable access, focussing on making all our content entirely free to all low and middle-income regions, and affordable for readers lucky enough to live in higher-income regions

Find out more about continuing medical education (CME)



As a member of Radiopaedia, you can create your own interesting case library as well as help improve articles on the site. You can use the thousands of cases to help teach your peers and promote radiology and medicine more broadly.

You can be an individual contributor or you can have your institution verified and join with your colleagues to combine your case libraries together. 

Find out more about institutions.


Working together to create content

Articles are collaborative efforts to provide a single canonical page on any and all topics relevant to the practice of radiology. As such, articles are written and edited by a great many users over a period of time. Although this can be intimidating at first, the end result is something far more valuable than what can be achieved purely through individual effort. So, if collaboration is not your thing, writing articles is not for you. We like properly referenced content with subscription-free (open access) references, allowing readers and editors to cross-check the validity of articles and their content.

Explore Radiopaedia.org's Articles.


Sharing your interesting cases with the world

Each case page presents a single case to the community. While these cases belong to the contributing user, they can be viewed by the community and added to articles, tutorials, or quizzes. Sharing cases on Radiopaedia.org is different to writing articles. You can upload your interesting cases. You or others can then link them to existing articles. Moreover, you can add descriptions of the case and the imaging safe in the knowledge that only you (as well as editors and site administrators) can edit them.

Explore Radiopaedia.org's Cases.

Contributing Content

Exceptional cases and up-to-date articles are vital for Radiopaedia.org. To take the first steps towards contributing content just access our Editing Articles Quick Start Guide.

History of Radiopaedia


The accuracy and continued development of Radiopaedia.org is overseen by a dedicated and talented group of volunteer editors. The open credentials and desire to create a free world-class resource are similar to those of Wikipedia. However, the importance of accurate information means that checks and balances of additions are required for Radiopaedia.org and our editors provide this. They constantly review additions and changes to articles and cases, something that is facilitated by being spread around the globe through a variety of time zones.

Meet Radiopaedia.org's Editors.

Expert Advisers

Our editors also draw upon the knowledge of our expert advisers. Our expert advisers are known to not only be experts in their field and educators but to also support the radiology free open access medical education movement (#FOAMrad).

Meet Radiopaedia.org's expert advisers.

Support Radiopaedia.org

A Radiopaedia.org Supporter is someone who values what we are trying to accomplish, and is willing to help us with small periodic financial contributions to help build:

  • innovative educational features
  • enhanced medical information in the radiology reference section
  • enhanced teaching facilities such as new presentation and quiz features
  • continuous improvement of the website
  • accessibility of radiology information to medical professionals in developing countries

We hope that with Radiopaedia.org Supporters we can not only keep our public content free for all but also fund the continuous improvement of the site and development of new game-changing features.

Become a Supporter

Image Licensing and Terms of Use

To allow easy legal access to content on Radiopaedia.org while simultaneously ensuring that contributors maintain control over both attribution and commercial use of images submitted, all content is provided under a modified creative commons license. Further details of these modifications are outlined in our Terms of Use.

Contact Us

If you have any queries or suggestions, contact us.

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