case_images: PMC11762341_01
case_images: (A) A crossing blood vessel runs through the birth canal, (B) transvaginal ultrasonography, (C) Doppler examination (author's personal collection).
case_images: IMCRJ-18-145-g0002.jpg
case_images: PMC11762341_01_IMCRJ-18-145-g0002.jpg
case_images: f0001
case_images: We conducted a further method using transvaginal ultrasound and discovered the presence of fetal vessels within the chorio-amniotic membranes above the internal cervical ostium (Figure 1A and B). Pulsed-wave Doppler of the artery was correlated with the fetal heart rate (Figure 1C).
case_images: (A and B) Visible blood vessel (yellow arrow) runs through the birth canal during cesarean section (author's personal collection).
case_images: IMCRJ-18-145-g0003.jpg
case_images: PMC11762341_01_IMCRJ-18-145-g0003.jpg
case_images: f0002
case_images: APGAR score of 7 at the 1st minute and 9 at the 5th minute after birth. After the baby was delivered, the unprotected umbilical blood vessels were visible in the membranes and located above the internal cervical os across the internal ostium (Figure 2A and B).
case_images: Bilobulated placenta (yellow dotted line) with bridging blood vessel that connects the two lobules and causes vasa previa (blue arrow) (author's personal collection).
case_images: IMCRJ-18-145-g0004.jpg
case_images: PMC11762341_01_IMCRJ-18-145-g0004.jpg
case_images: f0003
case_images: There was a bridging vessel connecting the two placental lobules and caused vasa previa (Figure 3).  