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
Increased radioisotopes are seen in all of the following except: 
Select and explain. 
A. Primary bone tumour, B. Osteomyelitis, C. Paget's disease, D. Pseudo ahrosis
D: Pseudo ahrosis
Answer: D: Pseudo ahrosis 
Explanation: Ans. Pseudo ahrosis