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OBJECTIVE: To collect outcome data in a large cohort of patients with aggressive pituitary tumours (APT)/carcinomas (PC) and specifically report effects of temozolomide (TMZ) treatment.DESIGN: Electronic survey to ESE members Dec 2015-Nov 2016.RESULTS: Reports on 166 patients (40 PC, 125 APT, 1 unclassified) were obtained. Median age at diagnosis was 43 (range 4-79) years. 69% of the tumours were
