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What is A non-caseating granuloma is seen in? and explain in detail?
granuloma- distinctive type of chronic inflammation characterized by microscopic aggregation of activated macrophages (epithelioid cells) with scattered lymphocytes sometimes granulomas are associated with central necrosis caseating granuloma tuberculosis histoplasmosis non-caseating granulomas have no necrotic center Crohns disease sarcoidosis foreign body reactions leprosy ref Robbins 9/e p 98