Paroxysmal hypertension
Encyclopedia
Paroxysmal hypertension is episodic high blood pressure, which may be due to stress
of any sort or from phaeochromocytoma, a type of tumor
involving the adrenal medulla
. Patients with paroxysmal hypertension who test negative for phaeochromocytoma are said to be suffering from pseudophaechromocytoma, a disorder with no known cause.
Stress (medicine)
Stress is a term in psychology and biology, borrowed from physics and engineering and first used in the biological context in the 1930s, which has in more recent decades become commonly used in popular parlance...
of any sort or from phaeochromocytoma, a type of tumor
Tumor
A tumor or tumour is commonly used as a synonym for a neoplasm that appears enlarged in size. Tumor is not synonymous with cancer...
involving the adrenal medulla
Adrenal medulla
The adrenal medulla is part of the adrenal gland. It is located at the center of the gland, being surrounded by the adrenal cortex. It is the innermost part of the adrenal gland, consisting of cells that secrete epinephrine , norepinephrine , and a small amount of dopamine in response to...
. Patients with paroxysmal hypertension who test negative for phaeochromocytoma are said to be suffering from pseudophaechromocytoma, a disorder with no known cause.