Skin Cancer Image Viewer - Keep clicking the "Back" button on your device to view skin cancer images from credible Web sites (National Cancer Institute, skin cancer databases, universities). Each button click presents a new high quality skin cancer image, selected at random from these Web sites. The average size of an image is 30Kb. The system remembers which images have been viewed (even after you close the browser), so only new images are displayed every time the Skin Cancer Image Viewer is used. Using the Skin Cancer Image Viewer can be helpful to people with dysplastic nevus syndrome and others who would like to learn what skin cancer looks like. Individuals with dysplastic nevus syndrome may have hundreds of moles and it is important for them to monitor the moles for changes as well as know if any moles show similarity to skin cancer.