Progressive dysembryoplastic neuroepithelial tumour.

Area of Science:

• Neuro-oncology
• Pediatric Neurology
• Neuroradiology

Background:

• Dysembryoplastic neuroepithelial tumour (DNET) is a rare, benign brain tumor typically found in children.
• DNETs are often associated with drug-resistant partial epilepsy.
• Malignant transformation of DNETs is infrequently reported, with progression without malignancy being even rarer.

Observation:

• A case study of a young girl with a confirmed DNET is presented.
• The patient experienced clinical and radiologic progression of the DNET.
• This progression was observed 10 years after the initial biopsy of the tumor.

Findings:

• The DNET demonstrated significant clinical and radiologic progression over a decade.
• This progression occurred despite the tumor not undergoing malignant transformation.
• The case illustrates a rare natural history of DNETs.

Implications:

• This case expands the understanding of DNET natural history beyond typical benign behavior.
• It suggests that long-term surveillance for DNET progression is warranted, even in the absence of malignant changes.
• Further research into the mechanisms of DNET progression is needed to optimize patient management.