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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 27:1379-1381, June-July 2006
© 2006 American Society of Neuroradiology

Case Report
PEDIATRICS

Enlarged Parietal Foramina: MR Imaging Features in the Fetus and Neonate

A.M. Fink^a,c,d and W. Maixner^b

^a Department of Medical Imaging, The Royal Children’ Hospital, Melbourne, Australia
^b Department of Neurosurgery, The Royal Children’ Hospital, Melbourne, Australia
^c Department of Radiology, University of Melbourne, The Royal Women’s Hospital, Melbourne, Australia
^d Fetal Management Unit, The Royal Women’s Hospital, Melbourne, Australia

Address correspondence to Dr. A. Michelle Fink, Department of Medical Imaging, The Royal Children’s Hospital, Flemington Rd, Parkville, Melbourne 3052, Australia

Summary: Enlarged parietal foramina are believed to be benign and familial and due to a variable degree of defective intramembranous ossification of the parietal bones. We report 2 patients with this condition in whom fetal and neonatal MR imaging studies illustrate the antenatal and perinatal evolution of this condition and the associated persistence of a falcine sinus. We discuss its relationship to the spectrum of cephalocoeles.

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