Picture of Lentigo
A lentigo (plural= lentigenes) is a small, pigmented spot on the skin. It is comprised of an overgrowth of melanocytes. The lesions are benign. Lentigines are sometimes associated with a genetic disorder called LEOPARD syndrome.
Text Reference: UpToDate: "Benign Pigmented Skin Lesions Other Than Melanocytic Nevi (Moles)"