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The Laboratory Diagnosis of Congenital Syphilis: A Review Mary Breasette pp.53-55
Published Date 1980/1/1
DOI https://doi.org/10.11477/mf.1543201987
  • Abstract
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There has been a slow, but steady, increase in the annual incidence of new syphilitic infections since 1973. A significant number of these cases occur in pregnant females ; therefore, clinicians are confronted with*1 the increasing problem of diagnosing syphilis in the neonate. Even though active infection of the central nervous system is present, syphilis in the neonate may be clinically inapparent, clinical onset may be delayed, or the symptoms may mimic other diseases. A variety of criteria are utilized to diagnose congenital syphilis including maternal history*2, examination for chancres*3, and serological tests for syphilis performed on the infant and mother. Maternal data should be interpreted cautiously. The high incidence of biological false positive*4 (BFP) VDRLs*5 during pregnancy is well documented. The antibody causing the BFP may also be passively transferred across the placenta causing the infant to have a false positive VDRL. A false positive fluorescent treponemal antibody-absorption (FTA-ABS) may be found during pregnancy, although it is frequently overlooked. Occasionally, a BFP FTA-ABS that appears to be due to the pregnancy is found. False positive FTA-ABSs have also been reported in diseases associated with abnormal globulins, autoimmune disorders, acute infections, gamma globulin treatment, and narcotic addiction. False positives may be due also to incomplete absorption of antibodies to group treponemal antigens.


Copyright © 1980, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 1882-1375 印刷版ISSN 0301-2611 医学書院

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