About lentigo solaris (solar lentigo, lentigines):
-Occurs in sun exposed areas typically in individuals aged 50 and over
-Histologically, pigmentation is located in the epidermis, in the basal layer. (Stratum basale)
-It is caused by an increased number of melanocytes who have a normal amount of melanin
Treatment options include:
-cryotherapy
Solar lentigines need to be distinguished from solar hyperpigmentation :
-It occurs in light skinned individuals
-It is most common after 50 years old
-It is difficult to treat
Source of Information: 2012 (09) – Placek W. 21st Annual Congress of the EADV (European Academy of Dermatology and Venerology) – Prague (Praha), Czech Republic (česká republika)