Prenatal Evidence of Persistent Notochord and Absent Sacrum Caused by a Mutation in the T (Brachyury) Gene

Figure 1

Three-dimensional US scans. (a) 3D rendered image of a lateral view of left upper arm, scapula, chest, and spine. The spine ends abruptly at low lumbar level and appears disconnected from the pelvic bones. (b) 3D rendered coronal image of the fetal neck and trunk. The intervertebral and intercostal spaces appear reduced creating the impression of a compressed fetal trunk.

(a)

(b)