We report a 56-year-old man, who had migratory polyarthritis for a half year, and who presented with fever, a flare-up of polyarthritis, proximal muscle weakness, and bloody stool.

• 我们报告一位56岁男性病患，主诉多发性关节炎约半年，接著病人遭受溃疡性结肠炎，多发性肌炎及肝炎。