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
Most common presentation of radiation carditis is – 
Select and explain. 
A. Pyogenic Pericarditis, B. Pericardial Effusion, C. Myocardial Fibrosis, D. Atheromatous Plaque
B: Pericardial Effusion
Answer: B: Pericardial Effusion 
Explanation: Pericardial involvement is the most common and includes pericardial effusion and constrictive pericarditis.