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
In acute pyelonephritis, which of the following is not a USG finding: 
Select and explain. 
A. Increased vascularity, B. Renal enlargement, C. Compression of the renal sinuses, D. Increased echogenecity
A: Increased vascularity
Answer: A: Increased vascularity 
Explanation: None