What are the differential diagnosis of these type of nodules?
Subependymal grey matter heterotopia, subependymal tubers, subependymal giant cell astrocytoma.
With what kind of malformation of cortical development is this lesion associated?
Abnormal neural migration
Nodular and oval lesions located in ependymal-subependimal location in the left lateral ventricle, these lesions follow the same signal as the grey cortical matter on all sequences.
No hydrocephalus associated, no other intra or extraaxial node or mass.
The left caudate nucleus and thalamus are well depicted and not related to the nodular lesions.