%0 Case Reports %T IgG4 hypophysitis - a rare and underdiagnosed cause of pituitary gland and stalk mass-like thickening. %A Murphy AN %A Hannon AM %A Brett FM %A Agha A %A Javadpour M %A Looby S %J Br J Neurosurg %V 34 %N 1 %D Feb 2020 %M 29291640 %F 1.124 %R 10.1080/02688697.2017.1416061 %X Our aim is to present a typical case of IgG4-related hypophysitis, which will offer insight into the aetiology and pathogenesis of this relatively newly described disease. IgG4 Related Disease is a protean systemic condition that mimics inflammatory, infectious, and malignant processes. Biopsy of affected organs will show a typical histopathological pattern.