Brain Perfusion SPECT - Atlas, teaching cases - 22 brain SPECT teaching cases with color SPECT images and clinical information, explanations, and slide show. Also has a general tutorial section. Free, no registration. BrighamRAD, Harvard Medical School, Boston.

Crump Institute Mediabook Cases - Collection of more than a hundred clinical case studies with scan images, sorted by Organ system, Disorder, and even Tracer/Study type. Also has a search system. Free, no registration. Crump Institute, UCLA.

404 Gastrointestinal Case Studies by Virtual Hospital - 8 GI case studies (no quiz) with text and images from HelenAnne D'Alessandro of University of Iowa.
Meta Description: [ Virtual Hospital was a digital library of health information in pediatrics, paediatrics, and radiology for pediatric education and radiology education ]

Harvard JPNM teaching file - The Joint Program in Nuclear Medicine from the Nuclear Medicine Divisions of several Harvard Medical School teaching hospitals. 80 case studies to test yourself, each of which has a link to the complete case report, all comprehensive and well referenced.

Joint Program in Nuclear Medicine - Teaching File Cases from the Joint Program in Nuclear Medicine

Kansas University's Files - 30 clinical cases and 20 PET scans providing a variety of teaching points.

Mallinckrodt Institute of Radiology Files - MIR provides more than 200 cases in all areas, in both browsing and quiz form.

Myocardial Perfusion SPECT: Tutorial - 70 teaching cases with clinical information, color SPECT images, explanations, self quiz, and slide shows from Harvard Medical School, Boston.

Nuclear and SPECT Imaging - Twenty-five cases with large images, correlated with other imaging modalities and detailed case reports. From Case Western Reserve University, University Hospitals of Cleveland, and Rainbow Babies and Children's Hospital.

PET files - uhrad.com - 5 detailed clinical case studies of Positron Emission Tomography scans in a non-test format.

Radiopharmaceutical Image Library - A collection of both normal and abnormal images sorted by body system, from the University of Kentucky. Each comes with a short clinical introduction, and a summary of the image findings.