Children pheochromocytoma diagnosis and perioperative management Indeed the tumor where the localization diagnosis. Qualitative diagnosis of 24h urinary VMA and catecholamine determination. VMA and catecholamines in pheochromocytoma children 24h feces were significantly increased. Diagnosis of abdominal B ultrasound, CT and MRI. Q iodine benzene guanidine (131I - Metaiodohenzylguanidine, 131 MIBG) scanning is a way to search for residual tumor or multiple tumors. Deal and other reports 10 down the the children chromaffin cell tumor MIBG were positive Rigitine, histamine and glucagon test has not. The retroperitoneal pneumography is history. 2.4 Perioperative management to make anesthesia and surgery to maximize stability and increase the security of the sick child. Perioperative processing boils down to: the control of blood pressure； correct the arrhythmia； expansion； to improve the general condition and postoperative care. 2.4.1 preoperative blood pressure lowering oral adrenergic block Jing benzene benzylamine, a starting dose of 10rag, once a day, after a day to increase the dose every 8h time to find Jing amount to maintain blood pressure stable. Adrenergic blocking known as blockers to use the rear available. Prazosin is a special Festival a-adrenergic blockers. Antihypertensive effect, used alone or jointly with adrenergic block barbed This group down an antihypertensive effect of benzylamine in benzene alone the poor jointly with prazosin cried. Revillon, etc., report of 15 cases of children, pheochromocytoma, five of which fell made blood volume determination, hypovolemia 13 to 16, the preoperative preparation should infusion and a small amount of blood transfusion. Volume expansion. Blood pressure control after 2 to 3 weeks before surgery 2.4,2 sick child on the operating table after the ECG monitoring, the establishment of two intravenous access, the venipuncture drug lI or cut intubation, a pathway lost tuck, blood transfusion, and the other administration of a pathway, such as blood pressure swells, phentolamine or sodium nitroprusside, such as blood pressure plummeted, epinephrine and infusion. Endotracheal intubation base Ma, two cases in this group of ketamine anesthesia, intraoperative blood pressure were stable. Such as dual-commission adrenalectomy, rice, pine hydrocortisone 100mg ~ 2O0mg. 2.4,3 continue ECG monitoring after surgery. Record input 24h excretion, such as blood pressure is stable, you can disable the antihypertensive drugs. Such as bilateral adrenalectomy, and postoperative 1 to 8 days gradually reduced the hydrocortisone Song Jing.