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Fig 2. Patient 1. Fetal and neonatal brain MRIs.
Upper, Fetal MRI at 23 weeks gestation (single-shot, fast spin-echo).
Middle, Fetal MRI at 36 weeks gestation (single-shot, fast spin-echo).
Lower, Neonatal MRI (fast spin-echo T2).
A, Sagittal images.
B, Axial level of the thalami (upper) and parietal bones (lower).
C, Coronal level with the posterior lateral ventricles (upper) and parietal bones (lower).
Note: White arrows, parietal foramina with calvarial defects initially filled by CSF and then brain; black arrows, course of the abnormal interhemispheric venous drainage. Note the absence of the normally positioned straight sinus.)
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