A woman in her late 40s presented with rapidly progressive redness and stiffness of both hands, accompanied by 2 months of multiple finger joint and right shoulder pain. Results of autoimmune serology, including antinuclear antibody, C3 and C4, rheumatoid factor, and Scl-70 antibody tests, were negative. Raynaud phenomenon was not seen. There was an absence of nail fold capillary changes and distal digital pitting.

患者女性，40余岁，双手快速进行性红斑和僵硬，并伴多指关节和右肩疼痛2个月。自身免疫血清学结果（包括抗核抗体，C3和C4，类风湿因子和Scl-70抗体测试）均为阴性。未见雷诺现象。无甲襞毛细血管改变及指末梢凹陷。