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  • Title: [Warts and epidermoid carcinoma after renal transplantation].
    Author: Euvrard S, Chardonnet Y, Hermier C, Viac J, Thivolet J.
    Journal: Ann Dermatol Venereol; 1989; 116(3):201-11. PubMed ID: 2545155.
    Abstract:
    UNLABELLED: Kidney transplant recipients suffer in the long-term from several cutaneous disorders linked to the transplantation. We had the opportunity to observe several patients presenting with pre-epitheliomatous keratoses and cutaneous carcinomas associated with warts. We report herein on five cases that were subjected to a clinical, histological and virological study. Material and methods. Clinical and histological report. The patients were referred to use by the Kidney Transplantation Department of the Ed. Herriot Hospital (Lyon). They were examined clinically by one of us (S.E.). Virological studies. These were performed on warts, keratoses, keratoacanthomas and squamous cell carcinomas. Human papillomavirus (HPV) antigen was detected by indirect immunofluorescence using rabbit antibodies raised against group-specific HPV antigen; viral DNA was detected by in situ molecular hybridization using biotinylated probes of types 1a, 2a, 16, 18 in all cases and type 5 in 14 lesions under stringent conditions. DNA-DNA hybrids were revealed by an alkaline phosphatase enzymatic system. RESULTS: (a) Clinical data are summarized in table I (see fig. 1-5). (b) Histological examination (fig. 6-9) showed either unequivocal squamous-cell carcinoma or keratoacanthoma . The overall architecture of the lesions was reminiscent of keratoacanthoma; however the lower limit was frequently not sharply demarcated; in that area, cells contained large basophilic nuclei exhibiting atypical features and numerous mitoses. The majority of lesions had an histological appearance reminiscent of warts (table III), with upper epidermal keratinocytes being vacuolized and containing basophilic (c) The results of virological studies (fig. 10-13) are summarized in table III. HPV group specific antigen was detected merely in 5 out of 33 lesions; in contrast, in situ molecular hybridization showed that 25 out of 33 lesions contained HPV DNA, with 14 of them containing the potentially oncogenic types 16 and 18. Only 2 lesions were positive with the prove HPV 5. Discussion. The overall incidence of cancers in Kidney transplant recipients (3 p. 100) is about 100 times higher than in control populations (17). Cutaneous carcinomas account for about 50 p. 100 of cancers. This incidence increases with time after transplantation and sun-exposure. The delay on onset of cutaneous malignancies is relatively long (4 to 7 years) (6,7) and becomes longer with a decreasing age of the patients at the time of transplantation, as can be noted in our cases. Apart from Blohme (1), most authors have reported a prevalence of squamous over basal-cell carcinoma. None of our patients presented basal-cell carcinoma.(ABSTRACT TRUNCATED AT 400 WORDS)
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