Cutaneous Squamous Cell Carcinomas in Organ Transplant Recipients
AbstractNon-melanoma skin cancers represent a major cause of morbidity after organ transplantation. Squamous cell carcinomas (SCC) are the most common cutaneous malignancies seen in this population, with a 65–100 fold greater incidence in organ transplant recipients compared to the general population. In recent years, human papillomaviruses (HPV) of the beta genus have been implicated in the pathogenesis of post-transplant SCCs. The underlying mechanism of carcinogenesis has been attributed to the E6 and E7 proteins of HPV. Specific immunosuppressive medications, such as the calcineurin inhibitors and azathioprine, are associated with a higher incidence of post-transplant SCCs compared to other immunosuppressive agents. Compared to other immunosuppressives, mTOR inhibitors and mycophenolate mofetil have been associated with a decreased risk of developing post-transplant non-melanoma skin cancers. As a result, they may represent ideal immunosuppressive medications in organ transplant recipients. Treatment options for post-transplant SCCs include surgical excision, Mohs micrographic surgery, systemic retinoid therapy, adjunct topical therapy, electrodessication and curettage, and radiation therapy. This review will discuss the epidemiology, risk factors, and management options of post-transplant SCCs. In addition, the underlying mechanisms of beta-HPV mediated carcinogenesis will be discussed. View Full-Text
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Chockalingam, R.; Downing, C.; Tyring, S.K. Cutaneous Squamous Cell Carcinomas in Organ Transplant Recipients. J. Clin. Med. 2015, 4, 1229-1239.
Chockalingam R, Downing C, Tyring SK. Cutaneous Squamous Cell Carcinomas in Organ Transplant Recipients. Journal of Clinical Medicine. 2015; 4(6):1229-1239.Chicago/Turabian Style
Chockalingam, Ramya; Downing, Christopher; Tyring, Stephen K. 2015. "Cutaneous Squamous Cell Carcinomas in Organ Transplant Recipients." J. Clin. Med. 4, no. 6: 1229-1239.