PMC7586144_01
Axial Flair MRI demonstrating RGNT over a 6-year surveillance period. (A) 2013 MRI showing left temporal lobe cortical abnormalities with extension into the deep gray-white matter. (B) Surveillance MRI taken in 2016 that demonstrated stable cortical lesions with slight increase in the T2 signal in the superior cerebellar vermis. (C) MRI in 2019 at presentation to our institution with dramatic expansion of the previously stable left temporal lobe lesion with involvement of the left gangliocapsular region, bilateral thalami, tectum, and cerebellum. In addition, a new non-enhancing cystic component within the left foramen of Monro and third ventricle was identified, resulting in acute obstructive hydrocephalus.
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F1
The MRI scans from 2013, 2016, and 2019 are shown in Figure 1.