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
All are USG finding of Autosomal recessive PCKD except? 
Select and explain. 
A. Retain reniform shape (Kidneys), B. Oligohydramnios, C. Corticomedullary differentiation is lost, D. Cysts are greater than 3 cm in diameter
D: Cysts are greater than 3 cm in diameter
Answer: D: Cysts are greater than 3 cm in diameter 
Explanation: Cysts rarely exceed 1 - 2 cm in diameter.