Benign epithelial oral lesions – association with human papillomavirus

  1. Alicia-Rumayor Piña 1
  2. Felipe Paiva Fonseca 2
  3. Flávia Sirotheau Corrêa Pontes 3
  4. Hélder-Antônio Rebelo-Pontes 3
  5. Fábio-Ramôa Pires 4
  6. Adalberto Mosqueda Taylor 5
  7. José Manuel Aguirre Urizar 6
  8. Oslei Paes de Almeida 1
  1. 1 Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas. Brazil
  2. 2 Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas. Brazil; Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais. Brazil
  3. 3 Service of Oral Pathology, João de Barros Barreto University Hospital, Federal University of Pará. Brazil
  4. 4 Oral Pathology, Department of Surgery and Diagnosis, Dental School, State University of Rio de Janeiro. Brazil
  5. 5 Departamento de Atención a la Salud, Universidad Autónoma Metropolitana Xochimilco, México
  6. 6 Departamento de Estomatología II. Facultad de Medicina y Enfermería. Universidad del País Vasco/EHU. España
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Revista:
Medicina oral, patología oral y cirugía bucal. Ed. inglesa

ISSN: 1698-6946

Año de publicación: 2019

Volumen: 24

Número: 3

Páginas: 13

Tipo: Artículo

DOI: 10.4317/MEDORAL.22817 DIALNET GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: Medicina oral, patología oral y cirugía bucal. Ed. inglesa

Resumen

The presence of human papilloma virus in benign oral lesions has been studied by different techniques obtaining extremely variable results. The objective of this study was to determine the presence of human papillomavirus in 83 cases of benign hyperplastic epithelial oral lesions. Eighty-three oral lesions with clinical or histopathological features suggestive of HPV infection were retrieved from the files of four oral pathology services. Demographic data were obtained from patient´s medical charts. All cases had available clinical image, H&E preparations and paraffin blocks with enough tissue for HPV detection by in situ hybridization, and immunohistochemical reactions for Ki67. Episomal positivity for wide spectrum HPV was observed in 24% of the cases; most of them (70%) HPV 6/11 positive. HPV 16/18 was not detected. Condyloma acuminatum was the most common lesion associated with HPV (75%), followed by verruca vulgaris (15%), squamous papilloma and multifocal epithelial hyperplasia, 5% each. Koilocytes were identified in all the HPV positive cases. Ki67 showed an abnormal proliferation pattern in 90% of the HPV positive cases; most of them (70%) showing groups of proliferating cells in focal superficial regions, and in 20% positivity was seen almost in the whole thickness of the epithelium. HPV negative cases showed Ki67 positive cells restricted to the basal layer. Regarding oral lesions associated with HPV, condyloma is the most common lesion expressing low-risk subtypes. The etiology of squamous papilloma remains controversial as HPV was found in 1.9% of the cases. The identification of koilocytes and the pattern of expression of Ki67 reflect HPV infection and are helpful for classification. Papillary oral lesions not associated to HPV deserve further studies to better clarify its etiology.

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Fuente de los datos: Dialnet