ClassroomClipart.com, FotoSearch.Com and PDClipArt.org all have sections offering medical clipart. The clipart on PDClipArt.org is a collection of more than 250 public domain images that are offered free of charge and may be used, modified and shared with no royalty fee or credit required.
ClassroomClipart.com offers free, low-resolution versions of each image, with higher resolution file formats available for a fee. As of November 2015, FotoSearch.com has more than 59,000 medical images to choose from, including both clipart and photographs. FotoSearch is a premium service where users have the option of purchasing images individually or buying a package of credits to redeem against image downloads at a later date.