phaeochromocytoma

phe·o·chro·mo·cy·to·ma

(fē'ō-krō'mō-sī-tō'mă) A functional chromaffinoma, usually benign, derived from adrenal medullary tissue cells and characterized by the secretion of catecholamines, resulting in hypertension, which may be paroxysmal and associated with attacks of palpitation, headache, nausea, dyspnea, anxiety, pallor, and profuse sweating.
See also: paraganglioma
Synonym(s): phaeochromocytoma. [G. pheo + G. chrōm, color; -oma - tumor]

phaeochromocytoma

A rare ADRENALINE-secreting tumour of the inner part of an ADRENAL gland or occurring in similar tissue elsewhere in the body. The resulting excessive levels of adrenaline in the blood cause a severe and sometimes dangerous rise in the blood pressure as well as other distressing effects such as emotional upset, a rapid pulse, palpitations, nausea, vomiting and headache. Treatment is by surgical removal of the tumours.

phe·o·chro·mo·cy·to·ma

(fē'ō-krō'mō-sī-tō'mă) [MIM*171300] A functional chromaffinoma characterized by secretion of catecholamines, resulting in hypertension.
Synonym(s): phaeochromocytoma. [G. pheo + G. chrōm, color; -oma - tumor]

phaeochromocytoma

phaeochromocytoma

phe·o·chro·mo·cy·to·ma