Granulomatosis UMLS:C0521173 SNOMEDCT_US:443138004 A granulomatous inflammation leading to multiple granuloma formation, which is a specific type of inflammation. A granuloma is a focal compact collection of inflammatory cells, mononuclear cells predominating, usually as a result of the persistence of a non-degradable product and of active cell mediated hypersensitivity. This finding can be demonstrated by tissue biopsy. A granuloma is a compact (organized) collection of mature mononuclear phagocytes (macrophages and/or epithelioid cells) which may or may not be accompanied by accessory features such as necrosis or the infiltration of other inflammatory leukocytes (Adams DO. The granulomatous inflammatory response. Am J Pathol 1976:84:163-192). SNOMEDCT_US:44328006 HP:0002955 Abnormal macrophage morphology