Bullous secondary syphilis.

An earlier standard syphilology textbook states that 'If vesicles are an essential part of an eruption in an adult, the lesions are not due to secondary syphilis'. However, vesicular and bullous eruptions do occur in congenital syphilis and rare reports of both vesicular and pustular eruptions in adults with secondary syphilis have been published. We describe a patient with a bullous-pemphigoid-like eruption and a positive VDRL in whom treatment with a course of procaine penicillin resulted in rapid permanent resolution of the eruption.