Exogenous Ochronosis
January 2006 | Volume 5 | Issue 1 | Case Reports | 80 | Copyright © January 2006
M. Huerta Brogeras MD, M. Sánchez-Viera MD
Abstract
We describe a case of a 70-year-old woman who had been using a skin-lightening cream containing hydroquinone for a previous
diagnosis of melasma. She presented a hyperpigmentation predominantly on her cheeks and eyebrows. The biopsy
showed deposition of yellow-brown globules in the dermis. A diagnosis of exogenous ochronosis was made. An attempt of
treatment using a Q-switched Nd:YAG laser has been initiated recently. 
