Pathology Following is true about pheochromocytoma except – A Extra - adrenal tumors show zellballen pattern B Follows rule of 10s C 90% of non familial cases are bilateral D 10 % of pbeochromocytomas are extra adrenal 💡 Explanation Following is true about pheochromocytoma except - ✓ Correct Answer: C. 90% of non familial cases are bilateral