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Dysembryoplastic Neuroepithelial Tumors.

Yeon-Lim Suh1

  • 1Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.

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|October 24, 2015
PubMed
Summary

Dysembryoplastic neuroepithelial tumors (DNTs) are benign brain neoplasms often causing intractable epilepsy in children and young adults. This review details their clinical, radiographic, and histopathological features, aiding diagnosis.

Keywords:
BRAFV600E mutationCD34Dysembryoplastic neuroepithelial tumorEpilepsyMicrotubule-associated protein 2

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Area of Science:

  • Neurology
  • Pathology
  • Oncology

Background:

  • Dysembryoplastic neuroepithelial tumor (DNT) is a benign glioneuronal neoplasm.
  • It commonly affects children and young adults, often presenting with intractable seizures.
  • Radiological features include cortical topography without mass effect or edema.

Purpose of the Study:

  • To review the clinical, radiographic, histopathological, and molecular genetic features of DNTs.
  • To discuss diagnostic challenges, particularly for the nonspecific subtype.
  • To cover differential diagnoses for DNTs.

Main Methods:

  • Review of clinical data.
  • Analysis of radiographic findings.
  • Histopathological and immunohistochemical examination.
  • Molecular genetic analysis.

Main Results:

  • Three histologic subtypes of DNTs exist.
  • Specific glioneuronal elements aid diagnosis in complex/simple DNTs.
  • Nonspecific DNTs pose diagnostic challenges due to similarity to gliomas.

Conclusions:

  • Accurate diagnosis of DNTs, especially the nonspecific variant, requires integrated analysis of clinical, imaging, and pathological data.
  • Understanding DNT subtypes is crucial for appropriate patient management.
  • Further research into molecular genetics may improve diagnostic accuracy.