A 5-year-old girl had a solitary sclerotic plaque on the back of recent onset. The histopathologic features were consistent with morphea profunda. Thickening and homogenization of collagen bundles were demonstrated in the dermis and subcutaneous tissues, admixed with a prominent lymphocytic and plasma cell inflammatory infiltrate. Solitary morphea profunda is a variant of localized scleroderma that has not been reported previously in childhood. Cases described in the literature as nodular or keloid morphea may represent a similar entity.
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Kobayashi et al. (1991) studied this question.
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