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: Anatomy
[{'content': "Which of the following is associated with Von Brunn's nest? \nSelect and explain. \nA. Normal urothelium, B. Transitional cell carcinoma, C. Squamous cell carcinoma, D. Adenocarcinoma", 'role': 'user'}, {'content': "Answer: A \nExplanation: Nests of von Brunn:Proliferative invaginations of urothelium retaining continuity with the surface are termed von Brunn's buds. Well-defined solid nests of urothelial cells within the superficial lamina propria are termed von Brunn's nests. These two occur in most bladders, most commonly in trigone. They regarded as pa of the normal histology of bladder mucosa. Ref: Urologic pathology By Robe O. Petersen, Isabell A. Sesterhenn, Charles J. Davis, 2009, Page 137, 184.", 'role': 'assistant'}]