title: Clinical aspects of epidermodysplasia verruciformis and review of the literature.
abstract: BACKGROUND
  Epidermodysplasia verruciformis (EV), is an unusual genodermatosis characterized by persistent human papilloma virus infection with an autosomal recessive inheritance pattern. Clinically, it is characterized by flat wart-like lesions, scaly hypo- and hyperpigmented macules and/or patches, which resemble pityriasis versicolor, and development of early beginning nonmelanoma cutaneous carcinomas.
  
  
  METHODS
  The epidemiological and clinical features of seven cases with EV that have been followed up for 5 years were included in the study.
  
  
  RESULTS
  Seven cases consisted of four males and three females. All seven cases were working outdoors. Three cases were the product of consanguineous marriages. The onset of the lesions was between the ages of 1-20 years (the average age was 9.29 years). The initial appearance of cutaneous tumors were between the ages 15-34 years (average age: 21.28 years). Six of seven cases had malignant cutaneous tumors, of which histopathological examination revealed squamous cell carcinoma (SCC). Three of our cases had radiotherapy previously for the existing SCCs. These cases had more early malignant transformations.
  
  
  CONCLUSIONS
  Radiotherapy applied against the SCC previously, together with sunlight exposure may cause early malignant transformation of skin lesions and the destructive tumors.
authors.affiliation: The 2nd Dermatology Clinic, Ankara Numune Education and Research Hospital, Ankara, Turkey.
authors.forename: Ulker
authors.initials: U
authors.lastname: Gül
authors.forename: Arzu
authors.initials: A
authors.lastname: Kiliç
authors.forename: Müzeyyen
authors.initials: M
authors.lastname: Gönül
authors.forename: Seray Külcü
authors.initials: SK
authors.lastname: Cakmak
authors.forename: Seçil Soylu
authors.initials: SS
authors.lastname: Bayis
mesh_terms: D000293:Adolescent; D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000209:etiology / Q000473:pathology* / Q000532:radiotherapy; D002471:Cell Transformation, Neoplastic / Q000528:radiation effects; D004819:Epidermodysplasia Verruciformis / Q000150:complications / Q000473:pathology*; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D008297:Male; D030361:Papillomavirus Infections / Q000150:complications; D011878:Radiotherapy / Q000009:adverse effects; D012878:Skin Neoplasms / Q000209:etiology / Q000473:pathology* / Q000532:radiotherapy; D013472:Sunlight / Q000009:adverse effects