title: Positron emission tomography using [18F] fluorodeoxyglucose and [11C] l-methionine to metabolically characterize dysembryoplastic neuroepithelial tumors.
abstract: Dysembryoplastic neuroepithelial tumors are unique and benign congenital tumors occurring frequently in children and adolescents. Differentiation from other low-grade tumors is important for management. Five patients with confirmed dysembryoplastic neuroepithelial tumors were studied with positron emission tomography using glucose and protein metabolic uptake in an attempt to categorize these tumors metabolically. Functional brain mapping also was obtained to aid in operative management. Results of the study conclude that dysembryoplastic neuroepithelial tumors, although having similar neuroimgaing characteristics to other low-grade tumors, are distinguished by a unique metabolic profile. They are inactive tumors with no significant glucose or protein metabolic activity. The combination of preoperative positron emission tomographic metabolic studies with functional brain mapping allowed for prediction of tumor type, defined eloquent areas of cortical function, and improved approach and resection of the tumors with minimal risk of neurologic impairment.
authors.affiliation: Division of Neurology, Phoenix Children's Hospital/Good Samaritan Regional Medical Center, AZ 85006, USA.
authors.forename: A M
authors.initials: AM
authors.lastname: Kaplan
authors.forename: M A
authors.initials: MA
authors.lastname: Lawson
authors.forename: J
authors.initials: J
authors.lastname: Spataro
authors.forename: D J
authors.initials: DJ
authors.lastname: Bandy
authors.forename: C T
authors.initials: CT
authors.lastname: Bonstelle
authors.forename: S D
authors.initials: SD
authors.lastname: Moss
authors.forename: K H
authors.initials: KH
authors.lastname: Manwaring
authors.forename: E M
authors.initials: EM
authors.lastname: Reiman
mesh_terms: D000293:Adolescent; D001786:Blood Glucose / Q000378:metabolism*; D001921:Brain / Q000000981:diagnostic imaging; D001931:Brain Mapping; D001932:Brain Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D002540:Cerebral Cortex / Q000000981:diagnostic imaging / Q000601:surgery; D002648:Child; D004734:Energy Metabolism / Q000502:physiology*; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008715:Methionine; D018302:Neoplasms, Neuroepithelial / Q000000981:diagnostic imaging* / Q000601:surgery; D009419:Nerve Tissue Proteins / Q000378:metabolism*; D011379:Prognosis; D011877:Radionuclide Imaging
chemical_list: D001786:Blood Glucose; D009419:Nerve Tissue Proteins; D019788:Fluorodeoxyglucose F18; D008715:Methionine