Second and Third Trimester Fetal Anatomy
Fetal Anatomy 2.1. Head Description and Clinical Features By the beginning of the second trimester, the fetal cranium and brain are well formed, although the skull will continue to ossify…
Genitourinary Tract
Figure 12.1.1Unilateral renal agenesis. A: Transverse view of the fetal abdomen demonstrates the left kidney (arrowheads). No kidney is seen on the right. B: Coronal view of the abdomen demonstrates…
Ovaries and Adnexa
Figure 28.1.1Simple ovarian cyst. A: Coronal (COR RO) and (B) sagittal (SAG RO) images of the right ovary demonstrating a simple ovarian cyst (arrows). Normal ovarian tissue (arrowheads) is seen…
Therapeutic Obstetrical Procedures
Figure 23.1.1Intravascular blood transfusion into the umbilical vein at its placental insertion. A: Using ultrasound, a needle (arrowheads) was guided to place its tip into the umbilical vein. B: Blood…
Chromosomal Anomalies
Figure 14.1.1Trisomy 13 with holoprosencephaly, hypotelorism, echogenic kidneys, and midline facial defect. A: Coronal image of fetal head demonstrating fusion of the ventricles into a large monoventricle (arrows) and absence…
Extremities
Figure 13.1.1Thanatophoric dysplasia. A: Sonogram of right lower leg demonstrating bowing of both the tibia (arrow) and the fibula (arrowhead). Both long bones are markedly short for gestational age. B:…
Endometrium
Figure 27.1.1Endometrial polyp. A: Sagittal transvaginal view of the uterus demonstrates a homogeneously echogenic mass (calipers) in the endometrium, representing a polyp. B: Color Doppler demonstrates a single feeding vessel…
