I agree that photos can be very valuable to illustrate a point.  However, I am curious why you are directly asking patients and parents, rather than going through a physician’s office.  Working through a doctor’s office would legitimize your request.  Further, I would think that you would also want to be sure that the photos you are getting are, in fact, legitimate ones. In other words, anybody reading this can send you any photo they want.  How do you know that it is of someone with CAH or AIS?