Kwannapas Saengsin, Saviga Sethasathien, Prapai Dejkhamron, Rekwan Sittiwangkul, Krit Makonkawkeyoon, Suchaya Silvilairat, Karn Wejaphikul, Yupada Pongprot
Pheochromocytomas are catecholamine-producing tumors derived from the adrenomedullary chromaffin cells. The presentation is a classic triad of episodic headaches, sweating, and tachycardia. Hypertensive crisis can occur due to profuse catecholamine excess. Unusual manifestations mimicking cardiogenic shock, arrhythmia, and myocarditis have been rarely reported in children. We present a case with uncommon manifestations of pheochromocytoma in a child, including the episodes of exercised-induced presyncope with QT prolongation, and subsequently cardiogenic shock due to fulminant myocarditis...
2023: Annals of Pediatric Cardiology