An Unusual 2-Tone Epidermal Cyst: Dermoscopy, Confocal Microscopy, and Histopathologic Correlations https://www.researchgate.net/publication/281635034_An_Unusual_2-Tone_Epi...
http://www.skinmaster.ru/424/Ehpidermalnye_kisty/1205 http://dermline.ru/nav/main/kista_jepidermalnaja.htm