• Articles are available concerning (exogenous) ochronosis

• It can be said here that:

1. It is not as rare as we think
2. This side effect of hydroquinone use is underreported and underdiagnosed. Indeed a biopsy (often on the face) is needed to make the diagnosis.

Contributors:

Dr Christophe HSU – dermatologist. Geneva, Switzerland

Source of Information: 2012 (09) – Sachdev M. .21st Annual Congress of the EADV (European Academy of Dermatology and Venerology) – Prague (Praha), Czech Republic (česká republika)