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Hypertension: In the pheochromocytoma patient, postoperative hypertension could indicate incomplete tumor resection or another tumor of unknown location. However, the traditional, non-specific causes of postoperative hypertension including pain, fluid overload, and essential hypertension must also be considered.
Patients with paroxysmal hypertension who test negative for pheochromocytoma are said to be suffering from a clinical entity called "pseudopheochromocytoma." This disorder is due to episodic dopamine discharge and has been observed predominantly in hypertensive women whose presentation mimicked pheochromocytoma , but with subsequent testing ...
Some common secondary causes of resistant hypertension include obstructive sleep apnea, primary aldosteronism and renal artery stenosis, and some rare secondary causes are pheochromocytoma and coarctation of the aorta. [150]
Other common causes of hypertensive crises are autonomic hyperactivity such as pheochromocytoma, collagen-vascular diseases, drug use particularly stimulants, cocaine and amphetamines and their substituted analogues, monoamine oxidase inhibitors or food-drug interactions, spinal cord disorders, glomerulonephritis, head trauma, neoplasias ...
There are several etiologies of a hypertensive crisis, including a tumor. A rare, neuroendocrine tumor called a pheochromocytoma can cause a hypertensive crisis due to elevated levels of catecholamines. [6] [7]
Pheochromocytoma is a neoplasm composed of cells similar to the chromaffin cells of the mature adrenal medulla. Pheochromocytomas occur in patients of all ages, and may be sporadic, or associated with a hereditary cancer syndrome , such as multiple endocrine neoplasia (MEN) types IIA and IIB, neurofibromatosis type I, or von Hippel–Lindau ...
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Rarely, a pheochromocytoma (tumor of the medullar tissue of the adrenal glands, which are located anterior to the kidney), may result in an adrenergic storm. [20] This type of tumor is not common to begin with, and furthermore, the subtype that can cause massive adrenaline release is rarer still.