A Case of Granulomatous Lobular Mastitis Successfully Treated with Corticosteroid

Abstract

A 28–year–old woman presented at our surgical outpatient department complaining of sudden swelling and pain in her left breast. Examination revealed diffuse swelling extending over the entire left breast, with no evidence of neoplasm. Findings from needle biopsy confirmed a diagnosis of granulomatous lobular mastitis (GLM). Steroid was administered orally, and the dose was very gradually tapered. Swelling abated and, 8 months later, the breast had returned to an unaffected state. Although the treatment of GLM remains controversial, the present patient with generalized inflammatory symptoms was successfully treated with steroid therapy.