title: Merkel cell carcinoma and chronic lymphocytic leukemia presenting as collision tumor: a possible pitfall in cutaneous lesions.
authors.affiliation: Department of Surgical and Morphological Sciences, University of Insubria, Via O. Rossi 9, 21100, Varese, Italy, silvia.uccella@uninsubria.it.
authors.forename: Silvia
authors.initials: S
authors.lastname: Uccella
authors.forename: Francesca
authors.initials: F
authors.lastname: Magnoli
authors.forename: Fausto
authors.initials: F
authors.lastname: Sessa
authors.forename: Stefano
authors.initials: S
authors.lastname: La Rosa
mesh_terms: D000368:Aged; D001706:Biopsy; D015266:Carcinoma, Merkel Cell / Q000150:complications / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000150:complications / Q000473:pathology*; D009378:Neoplasms, Multiple Primary / Q000473:pathology; D012867:Skin / Q000473:pathology*; D012878:Skin Neoplasms / Q000150:complications / Q000473:pathology*