This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
In hyperparathyroidism all are seen except: 
Select and explain. 
A. Osteopetrosis, B. Osteoporosis, C. Cysts, D. Brown tumor
A: Osteopetrosis
Answer: A: Osteopetrosis 
Explanation: Answer is A (Osteopetrosis): Hyperparathyroidism is associated with osteoporosis and not with osteopetrosis.