Related Experiment Video
Updated: Aug 10, 2026

A Novel Method: Super-selective Adrenal Venous Sampling
Published on: September 15, 2017
[Association of pheochromocytoma with contralateral nonfunctioning adrenal adenoma]
Inmaculada Monjero-Ares1, Carlos Gegundez-Gómez, José Manuel Couselo-Villanueva
1Servicio de Cirugía General y Aparato Digestivo, Complexo Hospitalario Xeral-Calde, Lugo, Spain. inmamonj@hotmail.com
Abstract:
A 52-year-old woman complaining of abdominal pain, headaches and palpitations was admitted to our hospital for investigation of a bilateral adrenal tumor. Bilateral adrenalectomy was subsequently performed. The definitive diagnosis was right pheochromocytoma and left adrenocortical adenoma. Only four cases of pheochromocytoma associated with nonfunctioning adrenal adenoma have previously been reported. The coexistence of both entities is currently believed to be coincidental. Further examination of cases similar to ours might reveal the underlying mechanisms for the coexistence of these tumors.
Related Concept Videos
Adrenal Gland Disorders
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Cushing Syndrome II: Pathophysiology
Cushing Syndrome I: Introduction
Anatomy of the Adrenal Glands
These glands possess a distinctive yellow tinge due to the stored cholesterol and fatty acids required for hormone synthesis. They are encased in a fibrous capsule and cushioned by fat.
The adrenal gland comprises two distinct regions...
Adrenergic Antagonists: Pharmacological Actions of ɑ-Receptor Blockers
α1-blockers: These drugs inhibit α1-adrenoceptors on smooth muscle cells, resulting in vasodilation. This vasodilation lowers blood pressure, making α1-blockers valuable in treating hypertension. Additionally, α1-blockers effectively address urinary obstruction...
Hormones of the Adrenal Glands
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and corticosterone...
