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Diagnostic value of detailed metabolic pathway investigations in two cases of phaeochromocytoma with minimal increase in total catecholamine output

机译:详细的代谢途径检查对2例嗜铬细胞瘤儿茶酚胺总输出量增加最小的诊断价值

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摘要

Two patients with phaeochromocytoma having atypical biochemical features are described. Total catecholamine excretion was normal in one and only slightly raised in the other; both had a diagnostic rise in output of metadrenaline and 4-hydroxy-3-methoxymandelic acid whilst 4-hydroxy-3-methoxyphenylglycol excretion was increased in one of them. During hypertensive attacks adrenaline excretion became greater than that of noradrenaline. The diagnostic usefulness of separate adrenaline and noradrenaline estimations in addition to catecholamine metabolite assay is discussed. A lack of relationship between tumour catecholamine content and urinary catecholamine output is emphasized.
机译:描述了两名具有非典型生化特征的嗜铬细胞瘤患者。儿茶酚胺的总排泄在一个是正常的,而在另一个则仅轻微升高;两者均诊断出美肾上腺素和4-羟基-3-甲氧基扁桃酸的输出增加,而其中之一的4-羟基-3-甲氧基苯基乙二醇排泄增加。在高血压发作期间,肾上腺素的排泄量大于去甲肾上腺素。讨论了除了儿茶酚胺代谢物测定法以外的单独的肾上腺素和去甲肾上腺素评估方法的诊断价值。强调了肿瘤儿茶酚胺含量和尿儿茶酚胺输出之间的关系。

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