I get many questions concerning the use of telepathology and standards. In short, there aren't many standards per se, this site I came across recently talks about the development of such and groups that are working in this area with updated documents - http://www.conganat.org/digital/index.htm.
In addition, there are some proposed clinical guidelines produced by the special interest group for telepathology for the American Telemedicine Association - http://dpig.upmc.com/ata/guideline.htm.
To my knowledge the clinical guidelines are still in a "draft" format but provide an outline for telepathology consultation and clinical practice guidelines that are analagous to traditional consultation.
