Extended Volumetric Follow-up of Juvenile Pilocytic Astrocytomas Treated with Proton Beam Therapy
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چکیده
منابع مشابه
Juvenile pilocytic astrocytomas: CT and MR characteristics.
Thirty-seven cases of juvenile pilocytic astrocytoma were reviewed retrospectively to determine their CT and MR characteristics. All cases occurred in pediatric patients, except for one in a young adult. There was a propensity for tumors to be located around the third and fourth ventricles. On CT the tumors were all sharply demarcated and smoothly marginated and rarely had associated edema. The...
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PURPOSE We report the common characteristics of juvenile pilocytic astrocytomas revealed by proton MR spectroscopy. METHODS Eight children with pilocytic astrocytomas were studied with proton MR spectroscopy. The selected sampling volume was approximately 4 cm3, obtained from solid tumor. To localize the sampling volume, we used point-resolved spectroscopy (PRESS) and stimulated-echo acquisit...
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Proton beam therapy (PBT) is a potential new alternative to treatment with photon radiotherapy that may reduce the risk of late toxicity and secondary cancer, especially for pediatric tumors. The goal of this study was to evaluate the long-term benefits of PBT in cancer survivors. A retrospective observational study of pediatric patients who received PBT was performed at four institutions in Ja...
متن کاملExpression analysis of juvenile pilocytic astrocytomas by oligonucleotide microarray reveals two potential subgroups.
Juvenile pilocytic astrocytoma (JPA) is one of the most common brain tumors in children. The expression profiles of 21 JPAs, determined using Affymetrix GeneChip U133A, were compared with subjects with normal cerebella. The genes involved in neurogenesis, cell adhesion, synaptic transmission, central nervous system development, potassium ion transport, protein dephosphorylation, and cell differ...
متن کاملBenign cerebellar pilocytic astrocytomas in children.
AIM Cerebellar astrocytomas are benign tumors of the central nervous system. They represent 10% of all pediatric intracranial brain tumors and 30% of all pediatric posterior fossa tumors especially in the first two decades of life. MATERIAL AND METHODS We reviewed the medical records of patients; age at the time of surgery, pre- and post operative magnetic resonance imaging (MRI), localisatio...
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ژورنال
عنوان ژورنال: International Journal of Particle Therapy
سال: 2016
ISSN: 2331-5180
DOI: 10.14338/ijpt-16-00020.1