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: Radiology
Subperiosteal erosion is seen in: 
Select and explain. 
A. Scurvy, B. Hyperparathyroidism, C. Hypoparathyroidism, D. Rickets
B: Hyperparathyroidism
Answer: B: Hyperparathyroidism 
Explanation: Ans. Hyperparathyroidism