Typical features of aqueductal stenosis on sagittal T1 and Axial T2 weghted imaging, with dilatation of the lateral and now third ventricles. There is thinning of the corpus callosum, especially posteriorly, due to long term pressure effects. Note fornices have “fallen down” due to lack of support from the perforated septum pellucidum. Sulcal development is appropriate.