Actual clinical cases are presented as unknowns along with official report and labels with commentary.  Written in HTML for viewing on any operating system using any internet browser, with easy linking between pages and cases.  For each case, up to 4 images are presented for interpretation, after which the official report can be viewed.  The images are reshown with labels and commentary.  Links at the bottom of each page allow you to move rapidly within and between cases. An index links directly to findings. A case list automatically keeps track of which cases have been done.