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Abstract

Focal cortical dysplasia of Taylor, balloon cell subtype: MR differentiation from low-grade tumors.

R A Bronen, K P Vives, J H Kim, R K Fulbright, S S Spencer and D D Spencer
American Journal of Neuroradiology June 1997, 18 (6) 1141-1151;
R A Bronen
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K P Vives
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J H Kim
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R K Fulbright
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S S Spencer
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D D Spencer
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Abstract

PURPOSE To test the hypothesis that focal cortical dysplasia of Taylor (FCDT) can be distinguished from low-grade tumors by means of clinical and MR findings.

METHODS We examined 10 clinical and 19 MR imaging variables in patients who underwent surgery for intractable epilepsy over an 8-year period. The 54 patients with low-grade glial neoplasms were compared with the eight patients who had balloon cell FCDT.

RESULTS Statistically significant differences were seen with respect to eight of the MR variables and none of the clinical variables. MR findings suggesting dysplasia rather than tumor included the presence of gray matter thickening associated with a homogeneous hyperintense signal in the subcortical white matter that tapers as it extends to the lateral ventricle. A frontal lobe location favors dysplasia, while a temporal lobe (especially medial temporal lobe) location is more suggestive of a neoplasm.

CONCLUSION Several MR features help distinguish balloon cell FCDT from neoplasms, especially cortical thickening and a tapered signal to the ventricle. This distinction is important for surgical planning, as the decision to operate and the extent of surgical resection often depend on the presence or absence of neoplastic tissue.

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American Journal of Neuroradiology
Vol. 18, Issue 6
1 Jun 1997
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Focal cortical dysplasia of Taylor, balloon cell subtype: MR differentiation from low-grade tumors.
R A Bronen, K P Vives, J H Kim, R K Fulbright, S S Spencer, D D Spencer
American Journal of Neuroradiology Jun 1997, 18 (6) 1141-1151;

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Focal cortical dysplasia of Taylor, balloon cell subtype: MR differentiation from low-grade tumors.
R A Bronen, K P Vives, J H Kim, R K Fulbright, S S Spencer, D D Spencer
American Journal of Neuroradiology Jun 1997, 18 (6) 1141-1151;
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Cited By...

  • Longitudinal Findings of MRI and PET in West Syndrome with Subtle Focal Cortical Dysplasia
  • The surgically remediable syndrome of epilepsy associated with bottom-of-sulcus dysplasia
  • Evaluation of Focal Cortical Dysplasia and Mixed Neuronal and Glial Tumors in Pediatric Epilepsy Patients Using 18F-FDG and 11C-Methionine PET
  • Disorders of Cortical Formation: MR Imaging Features
  • Distinct clinicopathologic subtypes of cortical dysplasia of Taylor
  • Focal malformations of cortical development
  • Terminology and classification of the cortical dysplasias
  • Focal Cortical Dysplasias: MR Imaging, Histopathologic, and Clinical Correlations in Surgically Treated Patients with Epilepsy
  • Malformations of cortical development with balloon cells: Clinical and radiologic correlates
  • Classification system for malformations of cortical development: Update 2001
  • PEDIATRIC NEURORADIOLOGY
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