|Description:||This patient’s face displayed discolored areas indicative of an infection known as pinta, and which is due to Treponema sp. bacterium. Pathologic changes accompanying this discoloration include thickening of the epidermis, followed by scaliness and drying of the skin, known as acanthosis.|
Pinta occurs only in tropical Central and South America. It is characterized by a painless papule (primary) followed 2 - 18 months later by secondary papules on the hands, feet and scalp. Though caused by a specie of Treponema bacterium, pinta is a non-venereal form of treponematosis.