Increasing incidence of syphilis: A case report of non-resolving papulosquamous rash and role of a biopsy in the prevention of delayed diagnosis.

Syphilis is a sexually transmitted infection that is undergoing a resurgence in Canada and around the world. If not diagnosed correctly, syphilis can progress to its secondary and tertiary stages, affecting numerous organ systems. We present a case of a 41-year-old female who developed a papulosquamous rash, initially diagnosed as varicella with progression to a widespread and painful rash over 3 months.