Idiopathic granulomatous mastitis (IGM) is an inflammatory breast disease occurring primarily in young women (1, 2). The diagnosis of IGM is made by breast biopsy showing non-caseating granuloma after other causes of granulomatous mastitis have been excluded (1, 4). IGM is a poorly understood disease; there is no consensus regarding underlying cause, risk factors, and optimal treatment of this condition (3).
