A woman with pemphigus vulgaris developed erythema nodosum following gold thiomalate injections. A cell-mediated cause for erythema nodosum in this case was suggested on the basis of a positive lymphocyte stimulation test and an elevated two-hour incorporation of tritiated thymidine into her circulating lymphocytes.
Stone RL, Claflin A, Penneys NS. Erythema Nodosum Following Gold Sodium Thiomalate Therapy. Arch Dermatol. 1973;107(4):602-604. doi:10.1001/archderm.1973.01620190074019