Sanders T G, Linares R, Su A
Department of Radiology, David Grant United States Air Force Medical Center, Travis AFB, CA 94535, USA.
Skeletal Radiol. 1998 Aug;27(8):457-60. doi: 10.1007/s002560050418.
Subcutaneous rheumatoid nodules occur commonly in advanced cases of rheumatoid arthritis, but only rarely appear in the feet. We present a case of a subcutaneous rheumatoid nodule arising in the heel pad of a 68-year-old man with a long history of rheumatoid arthritis, along with a review of the literature. The appearance of the mass on MRI is illustrated and correlated with the histologic findings. The MRI appearance of a subcutaneous rheumatoid nodule is that of a nonspecific ill-defined mass with long T1- and long T2-relaxation times. A differential diagnosis for similar appearing masses is offered.
皮下类风湿结节常见于类风湿关节炎晚期病例，但很少出现在足部。我们报告一例68岁男性足跟垫出现皮下类风湿结节的病例，该患者有长期类风湿关节炎病史，并对相关文献进行综述。文中展示了该肿块在磁共振成像（MRI）上的表现，并与组织学结果进行了对比。皮下类风湿结节在MRI上表现为边界不清的非特异性肿块，T1加权像和T2加权像均呈高信号。文中还提供了对类似表现肿块的鉴别诊断。
