Prenatal radiographic evaluation of congenital transverse limb deficiencies: A scoping review

Figure 2 Prenatal images at 20 wk and 4 d and postnatal images demonstrating a congenital transverse limb deficiency below the left knee. A: Two-dimensional (2D) ultrasound demonstrating the amniotic bands (arrows) that attach to the residual nubbin (arrowhead); B: 3D ultrasound rendered image showing the transverse reduction defect at the level of the knee (arrow); C: Sagittal balanced turbo field echo slice on prenatal MRI of the left lower extremity showing a terminal transverse limb defect (arrow); D: Postnatal AP x-rays of the lower extremities demonstrating the left transverse reduction defect at the left of the knee, residual nubbin (arrow) and shorter left femur compared to right.