Troubles hyperpigmentaires dans la population “blanche” (Pour les professionnels)

The following conditions can be found in the Caucasian population (non-exhaustive list):

• Freckles (Ephelides):

1. increased amount of melanin with normal number of melanocytes

• lentigenes (solar lentigo):

1. appear after 50 years old.
2. Histologically: epidermal pigmentation located mainly in the basal layer
3. Caused by an increase number of melanocytes (containing a normal amount of melanin)

• Solar hyperpigmentation:

1. It occurs in light skinned individuals
2. It is most common after 50 years old
3. It is difficult to treat

• Hyperpigmentary disorders: poikiloderma civatte…

Contributors:

Dr Christophe HSU – dermatologist. Geneva, Switzerland

Source de l’information: 2012 (09) – Placek W. 21e congrès annuel de l’EADV (European Academy of Dermatology and Venerology) – Prague (Praha), République Tchèque (Tchéquie)(česká republika)