“…3 Apart from the association with systemic lupus erythematosus, urticarial vasculitis may be associated with other autoimmune disorders (Sjogren's syndrome), serum sickness, cryoglobulinemia, infections, certain medications (cimetidine, diltiazem, potassium iodide, fluoxetine, nonsteroidal inflammatory drugs, glatiramer acetate, levetiracetam, enalapril, telmisartan), and hematologic malignancies (plasma cell dyscrasias, leukemias). 4,5 While evaluating a case of urticarial vasculitis, differential diagnosis of urticaria, atypical erythema multiforme, serum sickness-like reactions, Schnitzler syndrome and adult-onset Still's disease should be considered and ruled out.…”