Antenatal Sonographic Findings of Agenesis of Corpus Callosum
The corpus callosum consists of predominantly white fibers connecting the cerebral hemispheres. It develops in the upper portion of the lamina terminalis, in the cephalic extremity of the neural tube near the closure point of the rostral neuropore. Among the three telencephalic commissures, the anterior commissure, the fornix and the corpus callosum, the latter is the last structure that undergoes development. The anterior commissure appears in the second month of gestation, the fornix develops in the third month and while the fornix is partially regressing, the first outlines of the corpus callosum can be identified during the fourth month.
KeywordsCorpus Callosum Lateral Ventricle Anterior Commissure Fetal Head Frontal Horn
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