Wikipedia
VisualDx is Clinical decision support system (CDSS) software intended to be used by medical practitioners, including primary care practitioners, to assist them in differential diagnosis. In one of its modes of operation, after a healthcare provider enters some basic facts about the patient, VisualDx presents peer-reviewed photographs or diagrams of medical conditions such as skin conditions, ordered from the most to the least likely, to assist in diagnosis. The system holds over 100,000 images. Other modes of operation include searching for medication that a patient has been taking, to find possible adverse drug reactions that they may be suffering from.
VisualDx is used in 1,500 hospitals and clinics, and is used for teaching in 80 US medical schools. It is sold as a monthly subscription service and a 30-day free trial is available.
VisualDx is produced by a company of the same name based in Rochester, New York. It was founded by Prof. Arthur Papier of the University of Rochester.