are histologically and biologically diverse group of entities that
have in common a localized proliferation of keratinocytes.
Dr. Iftikhar Ahmed is the Associate Professor of Dermatology and Laboratory
Medicine and Pathology at the Mayo Clinic & Mayo Foundation in Rochester,
Minnesota. He is also a consultant in dermatology, section head in dermatopathology,
and co-director of the dermatopathology fellowship.