title: Sonographic recognition of agenesis of the corpus callosum.
abstract: Agenesis of the corpus callosum may be diagnosed successfully in vivo when sonograms demonstrate absence of corpus callosum; absence of pericallosal and cingulate sulci; "sunburst" pattern of sulci along the medial surface of the hemisphere; wide interhemispheric fissure; elevation of the third ventricle; small, laterally positioned frontal horns with concave medial borders; large, laterally positioned and inverted cingulate gyri; and Probst lateral callosal bundles. Comparison of necropsy specimens with sonograms from eight patients with callosal agenesis illustrates the anatomic basis for these diagnostic features.
mesh_terms: D000015:Abnormalities, Multiple / Q000175:diagnosis; D061085:Agenesis of Corpus Callosum; D001927:Brain Diseases / Q000151:congenital / Q000175:diagnosis; D003560:Cysts / Q000151:congenital / Q000175:diagnosis; D004453:Echoencephalography; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male