T2-weighted magnetic resonance imaging (MRI) at 31 postmenstrual weeks in a fetus with microcephaly and simplified cortical pattern. Axial (A), coronal (B), and sagittal (C) planes show sloping forehead and increased extra-axial fluid with abnormal, simplified sulcation pattern. (Courtesy of Dr. Atil Yuksel and Dr. Arda Lembet, Istanbul, Turkey.) Source: MALFORMATIONS OF CORTICAL DEVELOPMENT, Ultrasonography of the Prenatal Brain, 3e Citation: Timor-Tritsch IE, Monteagudo A, Pilu G, Malinger G. Ultrasonography of the Prenatal Brain, 3e; 2017 Available at: https://obgyn.mhmedical.com/DownloadImage.aspx?image=/data/books/2015/timor3_ach7_f008.png&sec=149927195&BookID=2015&ChapterSecID=149927148&imagename= Accessed: October 12, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved