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Pinta is a non–sexually transmitted spirochetal infection caused by T pallidum subspecies carateum. It occurs endemically in rural areas of Latin America, especially in Mexico, Colombia, and Cuba, and in some areas of the Pacific. A nonulcerative, erythematous primary papule spreads slowly into a papulosquamous plaque showing a variety of color changes (slate, lilac, black). Secondary lesions resemble the primary one and appear within a year after it. These appear successively, new lesions together with older ones; are most common on the extremities; and later show atrophy and depigmentation. Some cases show pigmentary changes and atrophic patches on the soles and palms, with or without hyperkeratosis, that are indistinguishable from “crab yaws.” Unlike yaws and bejel, pinta only affects skin rather than both skin and bones. See above for therapy.

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