title: Subungual Keratoacanthoma.
authors.affiliation: Department of Dermatology, Hospital Ramon y Cajal, E-28034 Madrid, Spain. E-mail: lmg0007@hotmail.com.
authors.forename: Laura
authors.initials: L
authors.lastname: Miguel-Gomez
authors.affiliation: Department of Dermatology, Hospital Ramon y Cajal, E-28034 Madrid, Spain. E-mail: lmg0007@hotmail.com.
authors.forename: Lucia
authors.initials: L
authors.lastname: Turrion-Merino
authors.affiliation: Department of Pathology, Hospital Ramon y Cajal, E-28034 Madrid, Spain.
authors.forename: Maria Eugenia
authors.initials: ME
authors.lastname: Reguero-Calleja
authors.affiliation: Department of Dermatology, Hospital Ramon y Cajal, E-28034 Madrid, Spain. E-mail: lmg0007@hotmail.com.
authors.forename: Ernesto
authors.initials: E
authors.lastname: Muñoz-Zato