title: Ossifying adult xanthogranuloma.
abstract: Although a xanthogranuloma is a relatively common benign cutaneous condition and ossification has been observed within many cutaneous lesions, the association between ossification and xanthogranuloma has not, to our knowledge, been reported previously. We believe we describe for the first time the case of a xanthogranuloma with marked osseous metaplasia on the trunk of a 41-year-old woman. Microscopically, the lesion showed typical features of a xanthogranuloma, with the exceptional feature of exuberant bone formation. The presence of bone within this lesion is likely secondary to a metaplastic process.
authors.affiliation: Pathology Department, Hospital Universitario 12 de Octubre, Madrid, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Salamanca
authors.forename: Jose Luis
authors.initials: JL
authors.lastname: Rodriguez-Peralto
authors.forename: Carmen
authors.initials: C
authors.lastname: Gonzalez-Lois
authors.forename: Daniel
authors.initials: D
authors.lastname: Azorin
mesh_terms: D000328:Adult; D020405:Dermis / Q000473:pathology; D005260:Female; D015616:Histiocytosis, Non-Langerhans-Cell / Q000473:pathology*; D006801:Humans; D008679:Metaplasia; D009999:Ossification, Heterotopic / Q000473:pathology*