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
Egg shell calcification is seen in all except – 
Select and explain. 
A. Sarcoidosis, B. Silicosis, C. Post irradiation lymphoma, D. Bronchogenic CA
D: Bronchogenic CA
Answer: D: Bronchogenic CA 
Explanation: None