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': 'Histologically intense lymphocytic infiltration of the gland replacing the acinar structures, but preserving the lobular architecture seen in: \nSelect and explain. \nA. Mucoepidermoid carcinoma., B. Epithelial- myoepithelial carcinoma., C. Sjogren syndrome., D. Myoepithelioma', 'role': 'user'}, {'content': "Answer: C \nExplanation: The three types of histologic alterations seen in Sjogren's syndrome are as follows: \n\nIntense lymphocytic infiltration of the gland replacing the acinar structures, but preserving the lobular architecture.\nProliferation of the ductal epithelium and myoepithelium to form epimyoepithelial islands\nAtrophy of the glands sequential to the lymphocytic infiltration.", 'role': 'assistant'}]