Idiopathic granulomatous mastitis (IGM) isa benign, chronic non-caseating granulomatous breast disease, often mistaken for breası cancer. lt usually affects women of child-bearing age. Breast carcinoma and all known causes of granulomatous changes must be excluded before the diagnosis. Treatment consisted ofwide local excision of the involved tissue. We preseni a case of a female with IGM and erythema nodosum (EN) who was treated successfully with methylprednisolone.
Keywords: Granulomatous mastitis, corticosteroid, breası disease