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: Pathology
[{'content': 'Which of the following statements about Xanthogranulomatous Pyelonephritis is not true? \nSelect and explain. \nA. Foam cells are seen, B. Associated with Tuberculosis, C. Yellow nodules are seen, D. Giant cells may be seen', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Xanthogranulomatous Pyelonephritis is an uncommon complications of UTI. It is frequently seen in patient with urinary tract obstruction. It is not associated with Tuberculosis. Ref: Stua G. Silverman, Richard H. Cohan, (2007), Chapter 6, "Renal Infections", In the book, "CT Urography: An Atlas", USA, Page 94; Smith\'s Urology, 16th Edition, Pages 213-14; Heptinstall\'s Pathology of The Kidney, 6th Edition, Page 1006', 'role': 'assistant'}]