PMC4909375_01
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Erythema nodosum with bilateral eruption of painful subcutaneous nodules with overlying inflammatory redness. Involvement of only the upper extremities is unusual.
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Three months after surgery the patient experienced an eruption of multiple painful red nodules distributed symmetrically on both arms (Fig. 1).
Two months after the initial skin eruption. Clinical examination revealed only residual discoloration and slight induration.
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The eruption was clinically diagnosed as EN and faded slowly over the next two months without treatment (Fig. 2).