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
[{'content': 'Which of the following is false regarding Wilms tumor? \nSelect and explain. \nA. May be associated with aniridia, B. Associated with beckwith-wiedemann syndrome, C. May be associated with deletion of WT1 or WT2 gene, D. Peak incidence is below the age of 1 year', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Peak incidence is between 1-5 years. It usually persents as an asymptomatic flank or upper abdominal mass. Ref: Schwaz - Principles of Surgery, 7th Edition, Page 551.', 'role': 'assistant'}]