About

Radyssey is a free set of interactive lessons for radiology residents, written by Hasan, a fellow radiology resident.

Each lesson takes one real image and teaches a technique on it, step by step. The overlays are drawn over the image, and some have handles you can drag, sliders and a short self-test. The lessons work in a phone browser and need no sign-up.

How the lessons are made

• Images are openly licensed (for example CC BY) and credited on the page, or drawn by the author. No patient data is used.
• Facts are cited to primary sources. Teaching points that were not checked against a source are marked “general knowledge”.
• There are no ads and no tracking.

Feedback. Corrections and requests for topics are welcome.

For education only, not clinical advice. The lessons are study aids and do not replace supervised training or local protocols.