Depending on what the attending thinks about the case (ie. uniqueness, appropriateness, etc.), you may want to try submitting to a major journal in the areas you suggested.
Another option, however, is also to go with one of the many student journals around. The two (there used to be three, but JAMA's folded to my knowledge) main international student journals are the Student BMJ and the McGill Journal of Medicine (biased plug, of course). There are also many institution-based student journals, found at a large number of large medical schools.