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': 'Chronic gastritis is caused by all except \nSelect and explain. \nA. H. Pylori, B. Pernicious anemia, C. Alcohol, D. Overuse of salicylates', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Overuse of salicylates (NSAIDs) cause acute gastritis\nGastritis\n\nGastritis is the inflammation of Gastric mucosa.\nIt is a histological diagnosis and can be divided into -\n\nA. Acute gastritis\n\nIt is acute mucosal injury, usually transient in injury and is associated with neutrophilic infiltration.\nImportant causes are\n\n\nHeavy use of NSAIDs (aspirin) \xa0\xa0\nAlcohol and smoking \xa0\xa0\nUremia \xa0 \xa0 \xa0 \xa0\xa0\nIschemia and shock\nSevere stress (Trauma, burn, surgery)\nNasogastric intubation\n\nB. Chronic gastritis\n\nIt is characterized by the presence of chronic mucosal inflammatory changes leading eventually to mucosal atrophy and intestinal metaplasia, usually in the absence of erosions.\nImportant causes are\n\n\nH.pylori infection\xa0\nAlcohol and smoking\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\nRadiation\xa0\nAutoimmune, in association with\xa0pernicious anemia\nGranulomatous conditions → Crohn disease\nMiscellaneous - Amyloidosis, graft - versus - host disease, uremia.', 'role': 'assistant'}]