Patient 37: cystic PVL and secondary absence of the corpus callosum (25 weeks' gestation).
A and B, Sagittal (A) and coronal (B) views from sonograms obtained at 22 weeks' gestation show normal corpus callosum (arrows).
C and D, Sagittal (C) and coronal (D) ssFSE images (∞/98/0.5) reveal development of cystic PVL (arrows) and absence of the corpus callosum.
E, Postmortem coronal section confirms the MR findings.