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: Surgery
The most impoant radiological sign of splenic rupture is - 
Select and explain. 
A. Obliteration of psoas shadow, B. Obliteration of splenic shadow, C. Indentation of the left side air bubble, D. Fracture of one or more lower ribs on left side
B: Obliteration of splenic shadow
Answer: B: Obliteration of splenic shadow 
Explanation: Ans. is 'b i.e., Obliteration of splenic shadow A normal well outlined spleen indicates intact spleen.