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(A) Whitish and sclerotic plaques localized in abdomen and groin. Insert left: dermoscopy showed prominent whitish fibrotic beams and loss of hair in the involved area. (B) Histology showed a thickening and hyalinization of connective tissue of deep dermis and subcutaneous fat, with atrophy of adnexal structures, increased fibroblasts and dense collagens through the deep dermis (Hematoxylin & eosin, 50×).
