Hormone-secreting adrenal tumours cause severe hypertension and high rates of poor pregnancy outcome; a UK Obstetric Surveillance System study with case control comparisons.

Objective: To examine the management and outcomes of adrenal tumours in pregnancy.

Design: A national observational, cohort study over 4 years using the UK Obstetric Surveillance System (UKOSS).

Setting: Consultant-led obstetric units.