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  • Title: Optic pathway and hypothalamic/chiasmatic gliomas in children younger than age 5 years with a 6-year follow-up.
    Author: Janss AJ, Grundy R, Cnaan A, Savino PJ, Packer RJ, Zackai EH, Goldwein JW, Sutton LN, Radcliffe J, Molloy PT.
    Journal: Cancer; 1995 Feb 15; 75(4):1051-9. PubMed ID: 7842408.
    Abstract:
    BACKGROUND: Gliomas of the hypothalamus and optic pathways (H/OPG) comprise 5% of pediatric intracranial tumors, present most frequently in patients younger than age 5 years, and may have a more aggressive course in younger children. This study examined clinical characteristics and consequences of treatment of young children diagnosed with H/OPG: METHODS: The authors reviewed the course, treatment, and outcomes of 46 children diagnosed with H/OPG younger than age 5 years; the median follow-up was 72 months. The median age at diagnosis was 27 months. RESULTS: Fifteen (33%) of 46 patients had neurofibromatosis-1 (NF-1). Forty children (87%) had tumor progression in the follow-up period, and tumor growth was less common in children with NF-1. Initial therapy was limited to surgical resection in three and radiation in five children. To postpone radiation until after the age of 5 years, initial therapy was limited to chemotherapy in 32 patients. Radiation was not required in 9 of these patients and was postponed for 40 months (mean) in 17. Of the 46 children, 5 died of tumor progression, 4 became blind, and 20 of 34 evaluable patients had endocrine abnormalities. Endocrinopathy did not correlate with therapy. Ten of 17 children evaluated by questionnaire required special education. There was a trend for educational problems to occur in children who were irradiated before the age of 5 years. CONCLUSIONS: Gliomas of the hypothalamus and optic pathways and their treatment cause long term morbidity in young children. Chemotherapy postpones radiation effectively, and this delay may reduce neurologic morbidity; however, 60% of children eventually relapse. By contrast, patients with NF-1 have indolent disease.
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