Examination of the second-trimester fetus with severe oligohydramnios using transvaginal scanning.

摘要: Transvaginal sonographic transducers have permitted better resolution of the pelvic structures than previously possible. The presenting fetal part may be difficult to image transabdominally when lodged deep in lower uterine segment. In particular, second-trimester fetuses associated with severe oligohydramnios present a challenge sonologist because both lack amniotic fluid and curled position maternal pelvis. Two cases are reported which abnormalities were visible only vaginal probe. scan definitive diagnosis Potter syndrome not possible poorer transabdominal approach. I conclude that transvaginal scanning should considered patients unexplained anatomy is greatly enhanced.