<prompt> A non-caseating granuloma is seen in?Tropical sprueCeliac sprueUlcerative colitisCrohns disease  <response>: 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 9e p 98 