Abstract
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.
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Sanders, T., Linares, R. & Su, A. Rheumatoid nodule of the foot: MRI appearances mimicking an indeterminate soft tissue mass. Skeletal Radiol 27, 457–460 (1998). https://doi.org/10.1007/s002560050418
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DOI: https://doi.org/10.1007/s002560050418