Fig 10.
Malformations of cortical development associated with hypothalamic hamartomas in two patients.
A, T2-weighted axial and coronal view MR images in the first case show periventricular nodular heterotopia and focal dilation of the left lateral ventricle, plus overlying calcarine and temporal-parietal-occipital junction cortical thickening and abnormal gyral configuration (white arrows). The hypothalamic hamartoma is seen in the axial view image (arrowhead).
B, Inversion recovery coronal view image obtained at the level of the posterior hippocampus in the second case shows an atypical configuration of the medial occipitotemporal and posterior parahippocampal gyri (black arrow), with slight cortical thickening and indistinct gray-white boundary.