Subependymal Giant cell Astrocytoma (SEGA) (Male 3yrs)

There are multiple sub-ependymal nodules in keeping with tubular sclerosis. The cortical tubers are not well seen in unmyelinated white matter, but are present in both cerebral hemispheres. Radial abnormalities are well demonstrated on the T1 weighted images. In addition to these typical findings of a TS there is a subependymal giant cell astrocytoma (SEGA) in the foramen monro on the left. There is mild prominence of the left lateral ventricle compared with that on the right.