Female, 3 months old, full term infant, with ventriculomegaly of the newborn, as well as hydronephrosis. Assess for ventricular size and for tethered cord. Brain:Numerous small, closely packed gyri are evident in the bilateral frontal lobes and along the perisylvian regions bilaterally. Deep parenchymal infolding is evident along the left sylvian fissure, and to a lesser degree along the right sylvian fissure.Due to the above findings, the overall cerebral morphology is dysmorphic. The lateral ventricles are enlarged, left side more than right, with a wavy external contour. The cerebral white matter is diffusely thinned. However, the stage of white matter myelination, where assessable, is appropriate for the gestational age.The corpus callosum is thinned but fully formed and intact. The pituitary region is unremarkable. The brainstem and cerebellum are normally formed and intact. No Chiari malformation is seen.No evidence of restricted diffusion is seen. No significant parenchymal edema or mass effect is observed. There is no evidence to suggest acute or chronic intracranial hemorrhage.Spine:A full complement of normally formed vertebral bodies is evident. No segmentation anomaly is seen. Spinal alignment is anatomic. Vertebral body signal characteristic are within normal limits.The visualized spinal cord demonstrates normal signal intensity and morphology. The conus tip terminates at the T12-L1 level. The nerve roots of the cauda equina disperse evenly through the thecal sac. Evidence of slight anterior motion of the conus and cauda equina is demonstrated on prone imaging. No findings to suggest a fatty filum terminale or any intraspinal fatty lesion is seen.Atelectasis is evident in the lung bases. Incidental note is pelvocaliectasis of the left kidney.
1.Findings are seen compatible with bilateral perisylvian and frontal lobe polymicrogyria. As a result, the brain is generally somewhat dysmorphic with enlarged ventricles and thinning of the cerebral white matter. No acute intracranial abnormalities are suspected.2.Unremarkable evaluation of the spine. No evidence of tethered cord. 