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case_images: 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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case_images: Three months after surgery the patient experienced an eruption of multiple painful red nodules distributed symmetrically on both arms (Fig. 1).
case_images: Two months after the initial skin eruption. Clinical examination revealed only residual discoloration and slight induration.
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case_images: The eruption was clinically diagnosed as EN and faded slowly over the next two months without treatment (Fig. 2).