A usually benign, well-encapsulated, lobular, vascular tumor of chromaffin tissue of the ADRENAL MEDULLA or sympathetic paraganglia. The cardinal symptom, reflecting the increased secretion of EPINEPHRINE and NOREPINEPHRINE, is HYPERTENSION, which may be persistent or intermittent. During severe attacks, there may be HEADACHE; SWEATING, palpitation, apprehension, TREMOR; PALLOR or FLUSHING of the face, NAUSEA and VOMITING, pain in the CHEST and ABDOMEN, and paresthesias of the extremities. The incidence of malignancy is as low as 5% but the pathologic distinction between benign and malignant pheochromocytomas is not clear. (Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1298)

Descriptor ID	D010673
MeSH Number(s)	C04.557.465.625.650.700.725 C04.557.580.625.650.700.725
Concept/Terms	Pheochromocytoma Pheochromocytoma Pheochromocytomas Pheochromocytoma, Extra-Adrenal Pheochromocytoma, Extra-Adrenal Extra-Adrenal Pheochromocytoma Extra-Adrenal Pheochromocytomas Pheochromocytoma, Extra Adrenal Pheochromocytomas, Extra-Adrenal

Below are MeSH descriptors whose meaning is more general than "Pheochromocytoma".

Below are MeSH descriptors whose meaning is related to "Pheochromocytoma".

Below are MeSH descriptors whose meaning is more specific than "Pheochromocytoma".