9-year-old male with brain malformation, bilateral open lip schizencephaly, absent septum pellucidum, hypoplastic corpus callosum and dilated ventricles, persistent vomiting Redemonstrated is bilateral open lip schizencephaly connecting lateral ventricles and sylvian fissures, causing "bat-wing" appearance of ventricular system. The ventricles appear dilated but are stable in size. There is absence of septum pellucidum and hypoplasia of corpus callosum. The calvarium appears thinned. These findings are stable in appearance. Gray-white matter differentiation is maintained. There is no acute brain edema, midline shift, hemorrhage, or restricted diffusion/acute infarct. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
Stable appearance of bilateral open lip schizencephaly, absence of septum pellucidum and hypoplasia of corpus callosum.