Arch Dermatol
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Stiff skin syndrome is a sclerodermalike disorder that presents in infancy or early childhood with rock-hard skin, limited joint mobility, and mild hypertrichosis in the absence of visceral or muscle involvement, immunologic abnormalities, or vascular hyperreactivity. ⋯ Stiff skin syndrome is characterized by an early, insidious onset of stony-hard skin, often with associated contracturelike joint restriction, hypertrichosis, and postural and thoracic wall abnormalities. Supportive histopathologic findings consisting of either fascial sclerosis or increased fibroblast cellularity with sclerotic collagen bundles in the deep reticular dermis and/or subcutaneous septa may help to confirm this diagnosis.