This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'Which one of the following statements is false about Xanthogranulomatous pyelonephritis in children? \nSelect and explain. \nA. Often affects those younger than 8 years of age, B. It affects the kidney focally more frequently than diffusely, C. Clinical presentation in children is same as in adults, D. Boys are affected more frequently', 'role': 'user'}, {'content': 'Answer: D \nExplanation: It is most frequently affected in females compared to males. It is an unusual form of chronic pyelonephritis characterized by granulomatous abscess formation, severe kidney destruction, and a clinical picture that may resemble renal cell carcinoma and other inflammatory renal parenchymal diseases. Xanthogranulomatous pyelonephritis is a form of chronic pyelonephritis characterised by destruction of renal parenchyma and the presence of granulomas, abscesses and collection of lipid laden foamy macrophages (foam cells) REF: Harrison book of internal medicine 21ST EDITION', 'role': 'assistant'}]