[A case of familial, benign, recurrent and multiple pheochromocytoma whose 131I-MIBG scintigraphy was false negative]

This is a rare case of a 57-year-old-male patient with familial, benign and multiple pheochromocytoma recurring 23 years after initial surgery. His 131I-MIBG scintigraphy was false negative, but his son's 131I-MIBG scintigraphy was true positive.