Clin Dermatol 2017 Sep - Oct;35(5):491-496. Epub 2017 Jun 8.
Department of Dermatology and Cutaneous Biology, and the Jefferson Center for International Dermatology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania.
Dermatosis papulosa nigra was first described by Aldo Castellani (1874-1971) more than 90 years ago, and it has since been presumed to be a variant of seborrheic keratosis. Despite their morphologic similarities both macroscopically and microscopically, key differences have yet to be explained. These lesions also exhibit different demographics, with dermatosis papulosa nigra having a predilection for dark-skinned individuals and a female predominance. Read More