Treatment with antithyroid drugs may be accompanied by side effects. We present a patient diagnosed with Grave's Disease who developed extensive vasculitis in the lower limbs during methimazole use. After suspension of the methimazole and the introduction of prednisone in immunesupressor doses the cutaneous lesions started to involute.
Anti-neutrophil cytoplasmic antibody-associated vasculitis; Methimazole; Vasculitis; Cutaneous leukocytoclastic vasculitis