Byung Kyu Cho

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The objective of the study is to compare survival and quality of life (QoL) by the delivery time of adjuvant radiotherapy (RT), early or late, for craniopharyngiomas. Fifty patients received RT between 1985 and 2002. Early RT (n=25) was delivered within 3 months after initial surgery, whereas late RT (n=25) was combined with or without reoperation after(More)
Subependymomas are rare, slow-growing, benign intraventricular tumors which occur commonly in the fourth or lateral ventricle. They usually occur in elderly men and often are asymptomatic and discovered incidentally. We report a case of a 6-year-old girl with a symptomatic subependymoma in the third ventricle with MR imaging.
Recent studies in human and animal subjects have suggested a relationship between intracranial pressure (ICP) and ventricular dilatation and multimodality evoked responses which, if substantiated, would be of value to clinical practice as a noninvasive way of assessing the need for shunting in selected patients in whom computed tomography (CT) is not(More)
BACKGROUND In this study, we investigated the effects of reduced-dose craniospinal radiotherapy (CSRT) followed by tandem high-dose chemotherapy (HDCT) with autologous stem cell rescue (ASCR) in children with a newly diagnosed high-risk medulloblastoma (MB) or supratentorial primitive neuroectodermal tumor (sPNET). METHODS Between March 2005 and April(More)
In order to study the metabolic events surrounding ischemia induced by the graded increase of cerebrospinal fluid (CSF) pressure, the technique of simultaneous phosphorus-31- and hydrogen-1-enhanced nuclear magnetic resonance spectroscopy was applied to five cats as intracranial pressure (ICP) was gradually raised by the instillation of mock CSF. Threshold(More)
The authors report results of preoperative and postoperative urodynamic studies (UDS) and prognostic factors of urologic outcome in cases of lumbosacral lipomas for which prolonged follow-up data were available. The present series includes 42 consecutive cases of lumbosacral lipoma in patients aged 2 months to 15 years who underwent untethering operation(More)
Nerve Growth Factor (NGF) is a neurotrophic factor that prevents apoptosis in neuronal progenitor cells. In rat pheochromocytoma (PC12) cells, tyrosine kinase A receptor (TrkA) mediates neurotrophic or protective effects, while p75 neurotrophin receptor (p75NTR) functions as a death receptor. We have determined whether TrkA mediates any cytotoxic effect.(More)
=Abstract=A case of medulloblastoma associated with Rubinstein-Taybi syndrome is reported, as this is the first reported case of medulloblastoma associated with this syndrome, to our knowlegde. The patient was an 8 112-year-old girl who had a typical facial appearance, broadening of the thumbs and great toes, and mental retardation. She had been exhibiting(More)
= Abstract = We report a case of Canavan disease in a 6 month-old male Korean baby who presented with aggravating tonic-clonic seizure for 5 days. Pathologic findings could be summarized as follows, increase in brain volume and weight, spongy degeneration in the deep layers of the cerebral cortex and subcortical white matter, and hyperplasia of Alzheimer(More)