A case of granulomatous mastitis, erythema nodosum and oligoarthralgia in a pregnant woman with high serum granulocyte-colony-stimulating factor

Granulomatous mastitis (GM) is a rare, benign, granulomatous inflammation of the breast, of unknown etiology [1]. Differing from common mastitis, which usually affects postpartum women, GM reportedly affects pregnant women as well as postpartum women and is occasionally accompanied by erythema nodosum (EN) and arthralgia [2, 3]. We report a case of GM plus EN and oligoarthralgia in a pregnant woman.A 35-year-old 25-week pregnant woman with mastitis refractory to antibiotics developed painful indurated [...]