<prompt> Tumor that follows rule of 10 ispheochromocytomaOnocytomaLymphomaRenal cell carcinoma  <response>: Pheochromocytomas are neoplasms composed of chromaffin cells. They follow rule of 10: - 10 of pheochromocytomas are extra adrenal - 10 of sporadic adrenal pheochromocytomas are bilateral - 10 of adrenal pheochromocytomas are biologically malignant. -10 of adrenal pheochromocytomas are not associated with hypeension. Ref: Robbins and cotrans 9e 