- Children over 10 years old with very high suspicion of sporadic or familial pheochromocytoma/paraganglioma (e.g. the presence of new onset of hypertension or hypertensive episodes, sweating, headaches, pallor, palpitations, drug resistant hypertension, etc.) family history of pheochromocytoma/paraganglioma or genetic mutations known to predispose individuals to develop these tumors, or the presence of a tumor on conventional imaging /ultrasounds, CT, MRI.