Figure 31.1.1Transvaginal ultrasound-guided aspiration of a unilocular cyst. A: Transvaginal view of the right adnexa demonstrates a simple unilocular cyst (arrows). There is a needle guide on the transducer, and…

Figure 21.1.1Twin–twin transfusion syndrome. The two fetal abdomens differ in size, one smaller (short arrow) than the other (long arrow), indicating discordant growth. The thin intertwin membrane (arrowheads) lies close…

Figure 16.1.1Complete placenta previa. A: Sagittal midline view of the lower uterus performed transabdominally demonstrates the placenta (PL) completely covering the cervix (CX). B: Sagittal midline view of the lower…

Figure 5.1.1Meningomyelocele. A: Coronal image of spine with meningomyelocele demonstrating disruption of lower spine (arrows) and protrusion of a cystic mass (arrowheads) representing the dorsal sac. B: Sagittal image of…

Figure 6.1.1Unilateral cleft lip on grayscale ultrasound. A: Coronal image of lower face demonstrating large unilateral defect (long arrow) in the upper lip (short arrows) extending into the ipsilateral nostril….

Figure 3.1.1Umbilical cord insertion into placenta. The umbilical cord appears as a thin-walled curvilinear structure (arrow) extending from its insertion site into the placenta (arrowhead), in grayscale (A) and color…

Figure 22.1.1Ultrasound-guided amniocentesis. Ultrasound has been used to guide a needle (arrowheads) into the amniotic fluid. Figure 22.1.2Continuous sonographic monitoring of fetal movement during amniocentesis. A fetal hand (arrow) is…

Figure 1.1.1Gestational sac at 5.0 weeks of gestation: double sac sign. Sagittal midline view of the uterus demonstrates the gestational sac, which appears as a fluid collection (*) in the…

Figure 7.1.1Normal nuchal translucency. Sagittal image of the fetus in neutral position, magnified such that the fetus takes up more than half the image, shows a thin hypoechoic band (calipers)…

Figure 10.1.1Esophageal atresia. There is severe polyhydramnios and no identifiable stomach on this transverse view of the fetal upper abdomen. 10.2. Duodenal Atresia Description and Clinical Features Duodenal atresia is…