【例１】女，２７岁。因全身皮肤红斑半月，外院诊断为玫瑰糠疹，未经治疗转我院。经追问病史，３个月前外阴曾出现过无痛性硬结及糜烂，未治疗自愈。近１年来有婚外性交史。皮肤科检查：躯干、四肢见直径０．５ｃｍ至１．５ｃｍ大小、较密集的卵圆形斑疹，呈棕红色，边缘... [Example 1] Female, 27 years old. Due to systemic skin erythema half months, outside the hospital diagnosed with pityriasis rosea, without treatment to our hospital. After the follow-up history, 3 months ago, the vulva had appeared painless induration and erosion, not treated self-healing. Nearly a year have a history of extramarital sex. Dermatology examination: trunk, limbs, see the size of 0.5cm to 1.5cm in diameter, the more dense oval rash, was reddish brown, the edge of ...