TY - JOUR T1 - Appearance of an Interhemispheric Cyst Associated with Agenesis of the Corpus Callosum JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1037 LP - 1040 VL - 25 IS - 6 AU - Annemarie Stroustrup Smith AU - Deborah Levine Y1 - 2004/06/01 UR - http://www.ajnr.org/content/25/6/1037.abstract N2 - Summary: 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. ER -