Treatment of ulcerated necrobiosis lipoidica with intravenous immunoglobulin and methylprednisolone.

The authors report a female patient with recalcitrant ulcerated necrobiosis lipoidica (NL) that was resistant to numerous systemic agents and who responded to treatment with intravenous immunoglobulin (IVIG), leading to resolution of the ulcerated areas for several months. Subsequent treatment with two further courses of IVIG was less effective, but a course of intravenous methylprednisolone led to regression of the lesions. As well as briefly reviewing the literature on treatments used to treat ulcerated NL, we outline the pathological mechanisms thought to be involved in the condition and how the modes of action of IVIG might explain its apparent efficacy in this case.