1. Introduction
Syphilis is a disease with sexual and vertical transmission, with known etiologic agent and treatment offered in the basic health network, which even with an underreporting reaches an incidence of 32% of cases of gestational syphilis and 17.4% of congenital syphilis [1].
In Brazil, between 1998 and 2012 were reported 80 041 cases of congenital syphilis in children under one year of age and 1780 cases of death in the same period for this disease [1]. This results from hematogenous spread of Treponema pallidum of the mother to the fetus through the placenta, with direct invasion of fetal tissues that lead to negative outcomes that can reach 50% of pregnant women with syphilis, which is 10-12 times more likely to miscarriage, perinatal mortality, low birth weight, even after treatment, than a seronegative patient [1, 2].
It is therefore of great relevance to public health that cases of fetal abnormalities still diagnosed in the prenatal ultrasonography are exposed to the scientific community in order to elucidate the various nuances that a condition can present.
The pregnant woman approved by the Ethics Committee of the Federal University of Santa Maria based on Resolution 466/2012 of the National Board of Health and by the application of consent the publication of the case.