Recurrence of pheochromocytoma in 11 years old school child, diagnosed by I-131 MIBG

Pheocromocytoma is a paraganglioma with an incidence of arterial hypertension approximately of 1%,but its diagnosis has several important issues from the clinical point of view. 1-The tumor resection frequently cure the hypertension. 2.-Its manifestations might simulates other diseases like carcinoid Sx, hypertiroidism,etc. 3.-It is a familiar disease transmitted by an autosomic dominant way. It is 10% bilateral,10%extraadrenal,10% occur in children and 10% are malignant. We present a case of pheochromocytoma recurrency in a young girl,11 y.o. operated 8 months before, at the Clinical Hospital, National University of Paraguay, School of Medicine for a right suprarenal gland pheochromocytoma of 2cms of diameter, who consults the Pediatric Department for arterial hypertension and cefalea. She also had a Von Hippel Sx and Glaucoma. Nuclear Medicine is a non invasive method that use the I-131 Methayodobencylguanidine(MIBG-I-131) with high accuracy to diagnose and treat both neuroblastoma and pheochromocytoma I-131 MIBG is the gold standard for the diagnosis of both entities with a sensitivity between 94-100%6-7 and specificity of 100% being the best method to evaluate these diseases in the pre and post operatory (Au)