This is most likely a forme fruste of limited scleroderma. The absence of skin involvement may in part be related to misclassification arising from early or subtle skin involvement. There is little evidence to consider ssSSc as a distinct clinical or serological subset of SSc. PubMed, J Rheumatol, 2014 Nov;41(11):2179-85. (Also see: Systemic Sclerosis Sine Scleroderma)
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