Late cutaneous syphilis.

Late cutaneous syphilis has become a rarity as a result of effective treatment of early and latent syphilis with antibiotics. Superficial nodular lesions of late cutaneous syphilis should be differentiated from conditions including sarcoidosis, leprosy, lupus vulgaris, and granuloma annulare. We report the case of a 50-year-old woman with superficial nodular lesions of late cutaneous syphilis.