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
Loss of Lamina dura is observed in 
Select and explain. 
A. Hypothyroidism, B. Hypo Parathyroidism, C. Hyperthyroidism, D. Hyper Parathyroidism
D: Hyper Parathyroidism
Answer: D: Hyper Parathyroidism 
Explanation: None