Amplification of N-myc gene and increase of urinary VMA and HVA in patients with neuroblastic tumors.
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概要
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Neuroblastic tumor cases in our departments were evaluated in terms of the stage of the tumor, N-myc amplification, urinary vanillylmandelic acid (VMA)/homovanillic acid (HVA) and survival rate.<BR>Two asymptomatic cases, diagnosed when under a year old by mass screening, had no amplifications of N-myc but showed more than one value of urinary VMA/HVA ratio. The patients are now doing well eight years after complete excision of the neuroblastoma which had originated in the sympathetic ganglion. On the other hand, two other symptomatic cases, operated on at the ages of 3 and 5 years, showed remarkable amplifications with less than one value of urinary VMA/HVA, and died from the tumor soon after partial resection of the neuroblastoma and ganglioneuroblastoma which had originated in the adrenal gland and the sympathetic ganglion, respectively.<BR>The present monograph reports our cases and discusses prognostic factors.
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日本医科大学医学会 | 論文
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