Retrospective study of 42 pts w/ cocaine-induced midline or systemic vasculitis; Current cocaine use common (20/23 + urine tox, including pts who prev. deniedcocaine). Found: septal perfs (75%), oronasal fistula(15%), less(27%) systemic Sxs, 56% PR3-ANCA+https://t.co/z1Z4INRSj5 https://t.co/v9ZyZD1Lrb