A case of granulomatous mastitis with arthralgia

Abstract

We report a 37-year-old woman with granulomatous mastitis and arthralgia. She presented to our hospital with a painful, hot and tender mass in her right breast in April, 2009. Core needle biopsy of the mass revealed numerous epithelioid cells admixed with multi-nucleated giant cells, plasma cells, lymphocytes and histiocytes, leading to a diagnosis of granulomatous mastitis. A month after the first medical examination, she complained of arthralgia. Low dose corticosteroid therapy was effective for these symptoms.