title: A nodule on the scalp of an elderly patient.
authors.affiliation: Department of Dermatology, Hospital Universitario Donostia, San Sebastián, Spain.
authors.forename: Elena
authors.initials: E
authors.lastname: del Alcázar Viladomiu
authors.affiliation: Department of Dermatology, Hospital Universitario Donostia, San Sebastián, Spain.
authors.forename: Anna
authors.initials: A
authors.lastname: Tuneu Valls
authors.affiliation: Department of Dermatology, Hospital Universitario Donostia, San Sebastián, Spain.
authors.forename: Maria Asunción
authors.initials: MA
authors.lastname: Arregui Murua
authors.affiliation: Department of Pathology, Hospital Universitario Donostia, San Sebastián, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Feito Pérez
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D012536:Scalp Dermatoses / Q000473:pathology*; D014973:Xanthomatosis / Q000473:pathology*