日本性感染症学会誌 Journal of Japanese Society for Sexually Transmitted Infections

Online ISSN: 2434-2505 Print ISSN: 0917-0324
日本性感染症学会 Japanese Society for Sexually Transmitted Infections
〒162-0801東京都新宿区山吹町358-5アカデミーセンター Japanese Society for Sexually Transmitted Infections Academy Center, 358-5 Yamabuki-cho, Shinju-ku, Tokyo 162-0801, Japan
Japanese Journal of Sexually Transmitted Infections 30(1): 1-4 (2019)
doi:10.24775/jjsti.C-2019-0001

症例報告症例報告

臍帯病理検査でTreponema pallidum感染を疑う所見を認めたが児に先天梅毒を認めなかった妊娠期梅毒の1例Prevention of vertical syphilis infection despite suspected pathological findings of Treponema pallidum infection in umbilical cord: a case report

産業医科大学病院総合周産期母子医療センターDepartment of General Perinatal Maternal and Child Medical Center, University of Occupational and Environmental Health

受付日:2019年3月11日Received: March 11, 2019
受理日:2019年5月31日Accepted: May 31, 2019
発行日:2019年8月31日Published: August 31, 2019
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We report a case of successful prevention of vertical syphilis infection despite the suspected pathological findings of Treponema pallidum infection on the umbilical cord. A 35-year-old woman, gravida 6, parity 4, was visiting a midwife after she became pregnant and was not tested for syphilis serum reactivity early in her pregnancy. She experienced pudendal pain at 17 weeks of gestation and visited our hospital. She was diagnosed with syphilis for the first time and treated with oral amoxicillin (1500 mg/day). Her symptoms soon disappeared, and serum serological tests for syphilis became negative at 27 weeks of gestation. No fetal abnormalities were noted in the fetal ultrasonography during pregnancy. Her course of pregnancy was uneventful. She delivered a single healthy baby. Although pathological examination of the placenta and the umbilical cord revealed the deposition of collagenous fibers around the umbilical cord vein, which was suggestive of T. pallidum infection of the umbilical cord, T. pallidum itself was not detected. The newborn baby was free for syphilis both physically and serologically.

Key words: Treponema pallidum; umbilical cord scar; pathological findings

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