A Case of Malignant Pheochromocytoma Presenting 7 Years After the Initial Surgery.

Background: Pheochromocytoma (PHEO) is a rare tumor of the adrenal medulla and sympathetic ganglion that produces the catecholamines norepinephrine and epinephrine. Traditionally, approximately 10% of PHEOs were thought to be malignant, but recent developments in PHEO research have noted that specific genetic mutations are associated with higher risk of metastatic spread.

Case Report: We report the case of a 71-year-old female who presented with abdominal pain in September 2009 when she was 64 years old.