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
Cold spot is seen in all the following except: 
Select and explain. 
A. Fibrous Cortical defect, B. Pseudarthrosis, C. Multiple myeloma, D. Eosinophilic granuloma
D: Eosinophilic granuloma
Answer: D: Eosinophilic granuloma 
Explanation: Eosinophilic granuloma - shows osteoblastic activity - hotspot.