Commentary

[摘要] Pheochromocytomas and paragangliomas are rare neural crest–derived tumors presenting with an extremely variable clinical picture. Hypertension, either continuous or paroxysmal owing to catecholamine release, is the hallmark, but it is not always present. Such variability depends on several factors, among which are the different secretory states of the tumors; however, even in the presence of high plasma catecholamine concentrations the clinical presentation may be minimal or silent. Therefore, many of these tumors are found incidentally.In the past, many …

[学科分类] 过敏症与临床免疫学