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Neurology India
Medknow Publications on behalf of the Neurological Society of India
ISSN: 0028-3886
EISSN: 0028-3886
Vol. 53, No. 1, 2005, pp. 112-114
Bioline Code: ni05033
Full paper language: English
Document type: Research Article
Document available free of charge

Neurology India, Vol. 53, No. 1, 2005, pp. 112-114

 en Case Report - Does increased 18FDG uptake reflect malignant transformation of a low-grade glioma? A diagnostic dilemma
Novak Laszlo, Molnar Peter, Lengyel Zsolt, Tron Lajos


Benign gliomas of the brain show decreased uptake of 18F fluorodeoxyglucose (FDG) on positron emission tomography (PET). Malignant transformation is usually manifested by an increase of 18FDG uptake. A 45-year-old female has been followed up since 1987 by means of 18FDG-PET for a right hemispheric World Health Organization Grade II oligoastrocytoma. In 1996, increased epileptic activity was accompanied by increased 18FDG uptake within the temporal part of the tumor. After surgery, the epileptic seizures diminished. Histological examination of the resected tumor showed no change in the pathology when compared with the first biopsy. Localized temporal increase of 18FDG uptake was not associated with malignant progression. The decrease of seizure frequency might shed light on a putative connection of hyperglycolysis and epileptic discharges.

18FDG-PET, malignant transformation, ictal scan, low-grade glioma

© Copyright 2005 Neurology India.
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