What are types of granulomatous inflammation?

Immune granulomas (variety of agents activating T cells, when inciting agent can't be eliminated like persistent microbe/ self Ag) Foreign body granuloma (In response to inert foreign body absence of T cell mediated immune response, typically around material like sutures, fibers not immunogenic, we see epithelioid cells apposed to surface of the body which can be identified in center of granuloma viewed w/polarized light may appear refractile)