Churg-Strauss is an example.
Eosinophils are predominant.
Wegeners Granulomatosis and Churg-Strauss Angiitis. Cells include histiocytes, plasma cells, lymphocytes and occasional giant cells. Multinucleated giant cells are predominant. The optimum specimen selected for biopsy should be an early established lesion about 18-36 hours old. The traditional view that Sweet Syndrome is a form of vasculitis is now being challenged.