055. HIGH SERUM ANGIOPOIETIN-2 LEVELS IDENTIFY LARGE VESSEL INFLAMMATION IN PATIENTS WITH POLYMYALGIA RHEUMATICA. (29th March 2019) - Van Sleen, Yannick; van der Geest, Kornelis; Abdullahad, Wayel; Sandovici, Maria; Boots, Annemieke; Brouwer, Elisabeth