An extremely rare disease that results from inflammation of the blood vessels and causes injury to many organ systems. The areas most commonly involved are the nose, sinuses, lungs, heart, intestinal tract, and nerves. Granulomatosis also is known as Churg Strauss vasculitis (CSV), Churg Strauss syndrome, and allergic angiitis.

Formation of multiple granulomas. Each has nodules of granulated tissue forming a tumorlike mass.