This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
Most commonly associated with Conn&;s syndrome 
Select and explain. 
A. Coical carcinoma, B. Pheochromocytoma, C. Coical adenoma, D. Bilateral micronodular adrenal hyperplasia
D: Bilateral micronodular adrenal hyperplasia
Answer: D: Bilateral micronodular adrenal hyperplasia 
Explanation: The most common cause of mineralocoicoid excess is primary aldosteronism bilateral micronodular hyperplasia some what more common than unilaterl adrenal adenoma( Ref Harrison 20 th edition)