A 34-year-old female presented for evaluation of a progressive, pruritic rash on the left leg with associated skin-tightening over the knee.Her symptoms began seven years earlier as a patch localized to the proximal anterior thigh.She was then lost to follow-up but later returned because her lesions were expanding down her leg and impacting her range of motion.She was otherwise healthy aside from recurrent genital herpes.Laboratory investigations revealed mild anemia with negative ANA, anti-Smith, RNP, and SCL-70 autoantibodies.
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Mumber et al. (2024) studied this question.
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