This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
Polycystic kidney disease is associated with cysts in all cases except 
Select and explain. 
A. Lung, B. Liver, C. Pancreas, D. Brian
D: Brian
Answer: D: Brian 
Explanation: About 40percnt have 1 to several cysts in the liver that are usuallu asymptomatic. Cysts occur muvh less frequently in the spleen pancreas and lungs