*Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA

†Division of Dermatopathology, Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH

‡MVZ Dermatopathologie Friedrichshafen/Bodensee PartG, Friedrichshafen, Germany

§Department of Pathology, University of Virginia, Charlottesville, VA

∥Department of Pathology and Laboratory Medicine

¶Arnie Charbonneau Cancer Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada

Conflicts of Interest and Source of Funding: The authors have disclosed that they have no significant relationships with, or financial interest in, any commercial companies pertaining to this article.

Correspondence: Thomas Brenn, MD, PhD, Department of Pathology & Laboratory Medicine, Cumming School of Medicine, University of Calgary, Diagnostic and Scientific Centre, 9-3535 Research Road NW, Calgary, AB, Canada T2L 2K8 (e-mail: [email protected]).