When we are presented with this situation we will biopsy several small pieces of infected skin and have them analyzed by a veterinarian that specializes in tissue analysis of the skin. (lbah.com)
If you're looking for original pieces, there are still several smaller pieces available and I'll be adding some bigger ones next week! (thefoxandshe.com)
Some species of reptiles shed an entire layer of skin as one whole piece, whereas other species shed several small pieces at a time. (articles.extension.org)