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Abstract：
Primary syphilic chancre most often involved genitalia, with 12% to 14% extragenital lesions. This article describes a rare case of a female patient with labial ulcer and diagnosed as oral syphilis (OS), an uncommon presentation of primary syphilis. OS is transmitted through orogenital contact.This study is case report and literature review.We report a 27-year-old woman with painless, ulcerative, and indurated lesion on her lower lip and a 7-day history of symmetrically distributed nonpruritic macules. OS was diagnosed based on clinical presentations and serologic test and patient\'s oral ulcer was cured with intramuscular penicillin G benzathine. However, both the patient and her husband denied any orogenital sexual history before. In addition, her husband was also diagnosed as syphilis later in our clinic. He reported having orogenital contact with other people.Therefore, this is a rare case of OS transmitted through kissing.
摘要：
原发性梅毒下颌最常涉及生殖器，有12%到14%的外生殖器损伤.本文描述了一例罕见的女性唇溃疡患者，诊断为口腔梅毒（OS），不常见的原发性梅毒。OS通过口腔生殖器接触传输。本研究为病例报告和文献综述。我们报道了一名27岁的无痛女性，溃疡性,下唇上的硬结性病变和对称分布的非瘙痒性黄斑的7天病史。根据临床表现和血清学检查诊断OS，肌内青霉素G苄星治愈患者口腔溃疡。然而,患者和她的丈夫以前都否认有生殖性史。此外,她的丈夫后来在我们的诊所也被诊断为梅毒。他报告说与其他人有生殖接触。因此,这是通过接吻传输的操作系统的罕见情况。
