以梅毒疹和脱发为表现的幼儿获得性梅毒一例

Acquired syphilis in a 3-year-old boy presented as syphilis rash and alopecia

患儿,男,3岁6个月。肛周、外生殖器处红褐色斑疹、斑丘疹1月余,虫蚀状脱发1周,无自觉症状,无性接触史。梅毒血清学检查:梅毒螺旋体颗粒凝集试验(TPPA)阳性,快速血浆反应素环状卡片试验(RPR)滴度为1∶32。其父母、祖父母梅毒血清学试验阴性,外祖父母TPPA、RPR均阳性,滴度分别为1∶16和1∶64。诊断为幼儿获得性二期梅毒。

A three and a half-year-old boy suffered from reddish-brown macules and papules on his perianal and external genitalia skin for a month and worm-erosion alopecia for one week,with no conscious symptoms.Serological examination showed that treponema pallidum particle assay(TPPA)was positive,and the rapid plasma reagin test(RPR)titer was 1∶32.TPPA of his parents and grandparents was negative,while TPPA of his maternal grandparents was positive and RPR titers were 1∶16 and 1∶64,respectively.The child was diagnosed as acquired secondary syphilis.