title: Merkel cell carcinoma in situ associated with actinic keratosis: fortuitous or serendipitous?
authors.forename: Gerardo
authors.initials: G
authors.lastname: Ferrara
authors.forename: Samuel D
authors.initials: SD
authors.lastname: Goos
authors.forename: Catherine M
authors.initials: CM
authors.lastname: Stefanato
mesh_terms: D000368:Aged; D002278:Carcinoma in Situ / Q000150:complications* / Q000473:pathology; D015266:Carcinoma, Merkel Cell / Q000150:complications* / Q000473:pathology; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D055623:Keratosis, Actinic / Q000150:complications* / Q000473:pathology; D012878:Skin Neoplasms / Q000150:complications* / Q000473:pathology