All are true about pheochromocytoma except?
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
Urinary V.M.A is most specific
Paraganglioma occurs at skull base
10% extra adrenal
Organ of Zuckerkandl is most common extra adrenal site
Disorders of Adrenal Gland