Abstract
A 35-year-old woman presented to our hospital with a painful lump in her left breast. Clinical findings, mammography, ultrasonography, computeriged tomography(CT) and magnetic resonance imaging(MRI) strongly suggested malignancy. Excisional biopsy was performed for definitive diagnosis and granulomatous mastitis was demonstrated histopathologically. A month later, erythma nodosum appeared on bilateral legs. Both lesions were healed without any drugs.
Granulomatous mastitis is a rare benign breast disease. Since its clinical manifestations are similar to those of mammary carcinoma, this condition was misdiagnosed as carcinoma. We report a rare case of granulomatous mastitis with erythema nodosum, together with a review of the literatures.
