This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of pituitary gland, Subject name: Medicine
Pituitary adenoma is seen in: 
Select and explain. 
A. MEN2A, B. MEN 2B, C. MEN 3, D. MEN 4
D: MEN 4
Answer: D: MEN 4 
Explanation: Pituitary adenoma is seen with: MEN 1 MEN 4 Carney Complex MEN 4: CDKN1B gene on Ch 12p13 Clinical features: Hyperparathyroidism Pituitary adenomas