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Figure 1: (a) T1-weighted axial magnetic resonance (MR) imaging showing a heterogeneous iso- to hypointense well-circumscribed lesion attached to the lower septum pellicidum abutting the foramen of Monro leading to left-sided ventricular dilation. (b and c) T2-weighted coronal and sagittal MR imaging showing a well-circumscribed heterogeneous lesion with few flow voids, occupying the region of foramen of Monro with ventricular dilatation. (d) Post gadolinium T1-weighted MR imaging showing heterogeneous enhancement of the lesion

Figure 1: (a) T1-weighted axial magnetic resonance (MR) imaging showing a heterogeneous iso- to hypointense well-circumscribed lesion attached to the lower septum pellicidum abutting the foramen of Monro leading to left-sided ventricular dilation. (b and c) T2-weighted coronal and sagittal MR imaging showing a well-circumscribed heterogeneous lesion with few flow voids, occupying the region of foramen of Monro with ventricular dilatation. (d) Post gadolinium T1-weighted MR imaging showing heterogeneous enhancement of the lesion