title: Reddish plaque on the arm of a 53-year-old woman. Diagnosis: Desmoplastic melanoma (DM).
authors.affiliation: Department of Dermatology, University Clinic of Navarra, School of Medicine, Pamplona, Spain. Electronic address: maiderpretel@yahoo.es.
authors.forename: Maider
authors.initials: M
authors.lastname: Pretel
authors.affiliation: Department of Dermatology, University Clinic of Navarra, School of Medicine, Pamplona, Spain.
authors.forename: Isabel
authors.initials: I
authors.lastname: Irarrazaval
authors.affiliation: Department of Dermatology, University Clinic of Navarra, School of Medicine, Pamplona, Spain.
authors.forename: Miguel
authors.initials: M
authors.lastname: Lera
authors.affiliation: Department of Dermatology, University Clinic of Navarra, School of Medicine, Pamplona, Spain.
authors.forename: Isabel
authors.initials: I
authors.lastname: Bernad
authors.affiliation: Department of Pathology, University Clinic of Navarra, School of Medicine, Pamplona, Spain.
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Idoate
mesh_terms: D001132:Arm; D001707:Biopsy, Needle; D046169:Dermoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008545:Melanoma / Q000175:diagnosis / Q000473:pathology*; D008875:Middle Aged; D012878:Skin Neoplasms / Q000175:diagnosis / Q000473:pathology*