RT Book, Section A1 Neumann, Hartmut P. H. A2 Jameson, J. Larry SR Print(0) ID 1141274696 T1 Pheochromocytoma T2 Harrison's Endocrinology, 4e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259835728 LK accessbiomedicalscience.mhmedical.com/content.aspx?aid=1141274696 RD 2024/03/28 AB Pheochromocytomas and paragangliomas are catecholamine-producing tumors derived from the sympathetic or parasympathetic nervous system. These tumors may arise sporadically or be inherited as features of multiple endocrine neoplasia type 2, von Hippel–Lindau disease, or several other pheochromocytoma-associated syndromes. The diagnosis of pheochromocytomas identifies a potentially correctable cause of hypertension, and their removal can prevent hypertensive crises that can be lethal. The clinical presentation is variable, ranging from an adrenal incidentaloma to a hypertensive crisis with associated cerebrovascular or cardiac complications.