All are true about pheochromocytoma except?
Urinary V.M.A is most specific
Paraganglioma occurs at skull base
10% extra adrenal
Organ of Zuckerkandl is most common extra adrenal site
Paraganglioma is a term used to describe catecholamine producing tumors in the skull base and neck. The classic rule of tens is valid for pheochromocytoma. Organ of Zuckerkandl is a collection of chromaffin cells near the origin of the inferior mesenteric aery or near the aoic bifurcation. It is the most common extra-adrenal site of pheochromocytoma. Urinary VMA is used for diagnosis of neuroblastoma and not pheochromocytoma. The most sensitive test for pheochromocytoma is urinary fractionated metanephrine
Disorders of Adrenal Gland