title: Atrophic dermatofibroma.
abstract: Dermatofibroma is a benign fibrohistiocytic tumor, common and easily diagnosed when classical clinicopathologic features are present. The atrophic variant of dermatofibroma is of uncertain origin. This lesion is characterized clinically by a flat or atrophic and depressible surface. Histopathological features show reduction of the thickness of the dermis and elastic fibers. We report a typical case of this uncommon and probably underdiagnosed variant.
authors.affiliation: Pedro Ernesto University Hospital, Rio de Janeiro State University, Rio de JaneiroRJ, Brazil.
authors.forename: Amanda Nascimento C de Macedo
authors.initials: AN
authors.lastname: Mota
authors.forename: Violeta Duarte
authors.initials: VD
authors.lastname: Tortelly
authors.forename: Daniel Lago
authors.initials: DL
authors.lastname: Obadia
authors.forename: Roberto Souto da
authors.initials: RS
authors.lastname: Silva
mesh_terms: D001284:Atrophy; D049109:Cell Proliferation; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology*