参考文献:1.Landman G, Taylor RM, Friedman KJ. Cutaneous papillary squamous cell carcinoma. A report of two cases. J Cutan Pathol 1990; 17: 105鈥?0.PubMed CrossRef 2.Masouye I, Kapanci Y. A third case of cutaneous papillary squamous cell carcinoma. J Cutan Pathol 1991; 18: 142鈥?.PubMed CrossRef 3.Martin RW, Farmer ER, Rady PL, Tyring SK. Cutaneous papillary squamous cell carcinoma in an immunosuppressed host. J Cutan Pathol 1994; 21: 476鈥?.PubMed CrossRef 4.Azorin D, Rodriguez-Peralto JL, Garcia-Garcia E, Salamanca J. Cutaneous papillary squamous cell carcinoma. Report of three new cases and review of the literature. Virchows Arch 2003; 442: 298鈥?01.PubMed 5.Fujimoto N, Nakanishi G, Ushida H, et al. Penile verrucous carcinoma arising in HPV-negative condylomatous papules. Eur J Dermatol 2011; 21: 436鈥?.PubMed 6.Duncavage EJ, Zehnbauer BA, Pfeifer JD. Prevalence of Merkel cell polyomavirus in Merkel cell carcinoma. Mod Pathol 2009; 22: 516鈥?1.PubMed CrossRef 7.Feng H, Shuda M, Chang Y, Moore PS. Clonal integration of a polyomavirus in human Merkel cell carcinoma. Science 2008; 319: 1096鈥?00.PubMed Central PubMed CrossRef 8.Cassarino DS, Derienzo DP, Barr RJ. Cutaneous squamous cell carcinoma: a comprehensive clinicopathologic classification-part two. J Cutan Pathol 2006; 33: 261鈥?9.PubMed CrossRef 9.Fitzpatrick SG, Neuman AN, Cohen DM, Bhattacharyya I. Papillary variant of squamous cell carcinoma arising on the gingiva: 61 cases reported from within a larger series of gingival squamous cell carcinoma. Head Neck Pathol 2013; 7: 320鈥?.PubMed Central PubMed CrossRef 10.Rollison DE, Giuliano AR, Messina JL, et al. Case-control study of Merkel cell polyomavirus infection and cutaneous squamous cell carcinoma. Cancer Epidemiol Biomarkers Prev 2012; 21: 74鈥?1.PubMed CrossRef