title: Horny syphilid.
abstract: A thirty-seven year old man presented with volar lesions resembling widespread clavi. Careful physical examination and serologic tests established a diagnosis of secondary syphilis. The unusual lesions best fit the rare clinical entity of horny syphilid. The case emphasizes the importance of maintaining a high index of suspicion of syphilis and the value of the serologic tests in evaluating cutaneous eruptions.
mesh_terms: D000328:Adult; D005528:Foot / Q000473:pathology*; D006225:Hand / Q000473:pathology*; D006801:Humans; D008297:Male; D013591:Syphilis, Cutaneous / Q000473:pathology*