血压持续升高的嗜铬细胞瘤通过测定24小时尿VMA(Vanillylmandelate)、甲氧肾上腺素(Metanephrine)及儿茶酚胺即足以肯定或否定诊断。当血压呈间歇性时,诊断较困难,因为在血压正常期间,肿瘤不一定分泌儿茶酚胺。为了判定这些检查的诊断价值,作者测定了15例嗜铬细胞瘤患者(其中4例为间歇型高血压)尿儿茶酚胺代谢产物浓度和安静状态血浆儿茶酚胺浓度。 Pheochromocytoma with increasing blood pressure is sufficient for the diagnosis of pheochromocytoma by measuring the presence of Vanillylmandelate, Metanephrine, and catecholamines for 24 hours. When the blood pressure is intermittent, the diagnosis is more difficult because the tumor does not necessarily secrete catecholamines during normal blood pressure. In order to determine the diagnostic value of these tests, the authors measured the urinary catecholamine metabolite concentrations and the plasma catecholamine concentrations in 15 patients with pheochromocytoma (4 of them intermittent hypertension).