Younger age is a risk factor for regrowth and recurrence of nonfunctioning pituitary macroadenomas: Results from a single Australian centre

Abstract

Objective: The natural history of nonfunctioning pituitary macroadenomas (NFPMA) after surgical resection is variable, with guidelines unable to define the duration of radiological follow-up. In this first Australian series, we identify risk factors for regrowth/recurrence of NFPMA to assist with guiding recommendations for long-term follow-up. Design: Retrospective analysis of all radiotherapy-naïve cases with NFPMA resected between 1995 and 2013. Patients: One hundred and twenty-three cases had both ≥2 postoperative scans and ≥12-month follow-up. Measurements: Regrowth was defined as any sustained increase in diameter of residual adenoma or recurrence as any new adenoma occurring post comp..