title: Appearance of an interhemispheric cyst associated with agenesis of the corpus callosum.
abstract: We describe a fetus with agenesis of the corpus callosum (ACC) and Dandy-Walker malformation that developed a frontal paramidline cyst late in gestation. The interval appearance of the cyst occurred in concert with increasing size of the lateral ventricles, which supports the hypothesis that cysts associated with ACC can develop with increasing intraventricular pressure. Recognition of the potential for a changing appearance of neurologic abnormalities is important to providing appropriate patient counseling.
authors.affiliation: Harvard Medical School and the Harvard-MIT Division of Health Science and Technology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, USA.
authors.forename: Annemarie
authors.initials: A
authors.lastname: Stroustrup Smith
authors.forename: Deborah
authors.initials: D
authors.lastname: Levine
mesh_terms: D000328:Adult; D061085:Agenesis of Corpus Callosum; D001932:Brain Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*; D020863:Central Nervous System Cysts / Q000150:complications / Q000000981:diagnostic imaging*; D003616:Dandy-Walker Syndrome / Q000150:complications / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D016216:Ultrasonography, Prenatal