Tabagisme et peau
What are solar lentigines?
- Solar lentigines are brown spots 1 cm or greater in diameter, occurring usually on the face and back of the hands.
- Solar lentigines are evidence of excessive sunlight exposure.
- They are found in individuals over 40 years of age, especially if they have a long history of working outdoors.
How are solar lentigines treated?
- One should avoid the sun and use a sunscreen.
- Topical treatment can be tried first which includes:
- 4 methoxyphenol (at 2% concentration) (hydroquinone is ineffective) to apply every other day.
- Retinoic acid (at 0.025% concentration) to apply every other day.
- Destructive treatment is also effective and includes:
- liquid nitrogen application
- laser (NDYAG) or IPL treatment
- and chemical peel are effective in removing the lesion.
Contributors:
Dr Christophe HSU – dermatologist. Geneva, Switzerland
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