Departments of *Dermatology

‡Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN

†Department of Dermatology, Alexandria University, Alexandria, Egypt

The authors have no funding or conflicts of interest to disclose.

All figures can be viewed online in color at www.anatomicpathology.com.

Reprints: Julia S. Lehman, MD, 200 First Street SW, Rochester, MN 55905 (e-mail: [email protected]).