Vols. Videos

Dysembryoplastic Neuroepithelial Tumor (DNET)

Last Updated: March 27, 2020

Figure 1: The DNET in this patient's lateral right temporal lobe is visible as involving the cortex and white matter. There is typical bubbly cystic change throughout the lesion visible on T2WI and FLAIR (top row left, top row right). The lesion is fairly circumscribed and demonstrates adjacent cortical thickening/dysplasia. Low signal intensity facilitated diffusion on DWI (bottom row left) indicates a very low-cellularity watery tumor. No enhancement is present on T1WI post contrast image (bottom row right).

Figure 2: This DNET demonstrates bright T2 signal inten...