This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Osteoporosis circumscripta is a finding seen in 
Select and explain. 
A. Pagets disease, B. Osteosarcoma, C. Multiple myeloma, D. Osteomyelitis
A: Pagets disease
Answer: A: Pagets disease 
Explanation: .