1. Nail squamous cell carcinoma: A hidden high-risk human papillomavirus reservoir for sexually transmitted infections
- Author
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Atsushi Tamura, Yuko Kuriyama, Akira Shimizu, Osamu Ishikawa, and Michiko Hasegawa
- Subjects
Male ,medicine.medical_specialty ,Skin Neoplasms ,Sexually Transmitted Diseases ,Dermatology ,Nail Diseases ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,medicine ,Humans ,Anal cancer ,Penile cancer ,Papillomaviridae ,Disease Reservoirs ,Cervical cancer ,Vaginal cancer ,business.industry ,Papillomavirus Infections ,HPV infection ,virus diseases ,Vulvar cancer ,medicine.disease ,Vulvar intraepithelial neoplasia ,female genital diseases and pregnancy complications ,stomatognathic diseases ,030220 oncology & carcinogenesis ,Carcinoma, Squamous Cell ,Penile Intraepithelial Neoplasia ,Female ,business - Abstract
Human papillomavirus (HPV) causes cervical cancer, anal cancer, vulvar cancer, vaginal cancer, penile cancer, and oropharyngeal cancer. Squamous cell carcinoma (SCC) in the genital region in particular is recognized to be caused by HPV infection, and intraepithelial lesions of the penis and vulva are termed penile intraepithelial neoplasia and vulvar intraepithelial neoplasia, respectively. Although SCC of the nail apparatus is recognized as being associated with high-risk HPVs, it is not well-known in general medicine, and its analysis has been insufficient. In this article, we reviewed 136 cases of HPV-associated nail SCC and SCC in situ and delineated their clinical characteristics. We found that half of the cases were high-risk HPV-associated. Almost all of the types were high-risk α-HPVs. This disease had a male dominance and left hand digit 3 and right hand digits 1-3 were typically affected. In this review, 24% of the cases of nail SCC had a history of other HPV-associated diseases, suggesting the possibility of genitodigital transmission. We propose that nail SCC is a hidden high-risk HPV-associated reservoir and should be recognized as a sexually transmitted infection.
- Published
- 2019
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