Keywords: آنتی تروپلاستمی ضد آنتیبادی (ANCA); Antineutrophil cytoplasmic antibodies (ANCA); Granulomatosis with polyangiitis; Microscopic polyangiitis; Eosinophilic granulomatosis with polyangitiis (Churg-Strauss syndrome); Chronic hypertrophic pachymeningitis; Pituitary pseudoadenoma;