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: ENT
[{'content': "Mikulicz cells are present in: \nSelect and explain. \nA. Rhinoscleromatis, B. Sarcoidosis, C. Wegener's granulomatosis, D. None of the above", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Rhinoscleroma presents with three typical stages: (1) catarrhal, with nonspecific rhinitis; (2) proliferative, which consists of a granulomatous reaction and the presence of Mikulicz cells; and (3) cicatricial, with mucosal fibrosis.', 'role': 'assistant'}]