PMC3135060_01
Histopathological examination of the placenta. Numerous spirochetes of Treponema pallidum in areas of the umbilical vein (a), chronic plate (b), deciduas (c) and villi (d) were noted by immunohistochemistry testing, which was performed using an antibody against T. pallidum.
OBGYN2011-320246.001.jpg
PMC3135060_01_OBGYN2011-320246.001.jpg
fig1
Numerous T. pallidum were detected by IHC, which uses an antibody against T. pallidum (Figure 1).