This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Childhood tumors, Subject name: Pediatrics
[{'content': 'Most common manifestation of Wilm&;s tumour is ________ \nSelect and explain. \nA. Haematuria, B. Abdominal mass, C. Hypeension, D. Loss of weight', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In Wilms tumor,most patients present with an asymptomatic abdominal mass detected by parents or physician during routine examination.Features at diagnosis include hematuria(10 25%),hypeension(25%),abdominal pain(30%),fever(20%),anorexia and vomiting. Reference:Essential pediatrics-Ghai,8th edition,page no:618.', 'role': 'assistant'}]