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Solar lentigines (liver spots, early seborrheic keratosis)

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:
  1. 4 methoxyphenol (at 2% concentration) (hydroquinone is ineffective) to apply every other day.
  2. Retinoic acid (at 0.025% concentration) to apply every other day.
  • Destructive treatment is also effective and includes:
  1. liquid nitrogen application
  2. laser (NDYAG) or IPL treatment
  3. and chemical peel are effective in removing the lesion.



Source of information: here