A Case of Paroxysmal Pheochromocytoma with Normal Catecholamine Levels / 대한내과학회지
Korean Journal of Medicine
;
: 503-509, 2012.
Artigo
em Coreano
| WPRIM
| ID: wpr-12479
ABSTRACT
A 53-year-old woman had a 1.7 cm left adrenal mass on an abdominal computed tomography (CT) scan. She presented with paroxysmal headache, palpitation, sweating, and hypertension. The patient was highly suspected of having a pheochromocytoma, but measurements of 24-hour urinary metanephrine, catecholamines, and vanillylmandelic acid were normal. Plasma and urine catecholamine levels were within the normal range even during paroxysmal episodes. A scintigraphic study with 131I-metaiodobenzylguanidine (MIBG) revealed selective concentration of the radiotracer, corresponding to the CT mass. The patient underwent a left adrenalectomy and the pathological examination confirmed the diagnosis of pheochromocytoma. In this report, we describe a rare case of a symptomatic pheochromocytoma with normal catecholamine levels. Our case illustrates that routine nuclear scintigraphy, such as 131I-MIBG, should be performed even in cases with normal hormonal testing for all patients with high clinical suspicion of pheochromocytoma.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Feocromocitoma
/
Plasma
/
Valores de Referência
/
Suor
/
Sudorese
/
Ácido Vanilmandélico
/
Catecolaminas
/
Metanefrina
/
Adrenalectomia
/
3-Iodobenzilguanidina
Limite:
Feminino
/
Humanos
Idioma:
Coreano
Revista:
Korean Journal of Medicine
Ano de publicação:
2012
Tipo de documento:
Artigo
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