Dysembryoplastic neuroepithelial tumour

Case contributed by Dr Muthu Magesh

Presentation

1st episode of GTCS in a 20 year old female.

Patient Data

Age: 20
Gender: Female
Modality: MRI

A well demarcated cystic intracortical lesion in the left frontal lobe, following CSF in all sequence. The lesion has a soap bubble appearance with no surrounding edema. No enhancement noted on T1W images after administration of gadolinium. Few delicate septa like structures are visible within the lesion. No evidence of mass effect. There is evidence of scalloping of overlying frontal bone

Case Discussion

Dysembryoplastic neuroepithelial tumours are benign tumour (WHO grade 1). DNET are one of most common cause for seizures in children.

DNET are supratentorial and characterized by intracortical location, multinodular architecture, and heterogeneity in cellular composition 1,2.

Differentials to be considered:

  • ganglioglioma: contrast enhancement present with calcification
  • pleomorphic xanthoastrocytoma: contrast enhancement with dural tail sign

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Case Information

rID: 48825
Case created: 26th Oct 2016
Last edited: 1st Nov 2016
Inclusion in quiz mode: Included

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