“…20,21 Although it is rare, myocardial involvement other than sustained or paroxysmal hypertension, from a pheochromocytoma can include angina pectoris, acute heart failure, dilated cardiomyopathy, myocardial infarction, and arrhythmias. [22][23][24][25][26] The acute onset of severe congestive heart failure secondary to catecholamine overproduction from a pheochromocytoma is a rare entity, especially when few or none of the other classic signs or symptoms are present. Our patient presented in such a manner, and if not for abdominal distention prompting evaluation with helical CT and subsequent finding of a right adrenal mass, the differential diagnosis of a pheochromocytoma may not have been entertained as quickly.…”