P11-02HPV GENOTYPING IN ASC-US CITOLOGY AT RIO DE JANEIRO, BRAZIL

11. Genotyping
D. Rosa 1, Y. Furtado 1, F. Silveira 1, R. Medeiros 1, L. Morse 1, K. Silva 2, G. Carvalho 1, G. Almeida 1.
1UFRJ (Brazil), 2FIOCRUZ (Brazil)

Background / Objectives

Background: The ASC-US cytological result accounts for more than half of the abnormal cytology results. The detection and typing for HPV DNA is effetive and benefic in the management of ASC-US citology results, because the HPV type have the relationship with the severity of the squamous intraepithelial lesions. Objective: The aim of the study was to analyze the effectiveness of the HPV-DNA tests in the initial approach of women with ASC-US cytology.Background: The ASC-US cytological result accounts for more than half of the abnormal cytology results. The detection and typing for HPV DNA is effetive and benefic in the management of ASC-US citology results, because the HPV type have the relationship with the severity of the squamous intraepithelial lesions. Objective: The aim of the study was to analyze the effectiveness of the HPV-DNA tests in the initial approach of women with ASC-US cytology.


Methods

Methods: A cross-sectional cohort study was conducted with 100 women from the city of Rio de Janeiro with ASC-US cytology using liquid-based cytology, a colposcopy procedure and HPV DNA testing.


Results

Results: The median age was 43 years. In 50% of the women were HPV positive. HPV genotyping test results showed that HPV types 51 and 16 were most frequent. 74% (37/50) of the women were infected with only one type, and 26% (13/50) were coinfected by two or more types. Most (60,9%) of the women with normal cytology were HPV negative, while all the women with severe cytology (LSIL, ASC-H, HSIL) were HPV positive. Most (64,1%) of the women with a normal colposcopy were HPV negative, while all of the women with an abnormal colposcopy (LSIL e HSIL) were HPV positive. There was cytocolposcopic concordance among 85% (59/69) of the women both tests normals. Only 30% (6/20) of the women with ASC-US cytology had an abnormal colposcopy. However, it was noted that cytocolposcopic concordance was obtained in 54,5% (6/11) of the women with severe cytology (ASC-H, LSIL, HSIL). Four women underwent biopsies with histological findings of NIC2 (2 cases), NIC3 (1 case) and microinvasive carcinoma (1 case).


Conclusion

Conclusion: Based on these data, it can be concluded that HPV DNA testing in the initial screening of women with ASC-US cytology may be an effective strategy.


References

References : 1. Diretrizes brasileiras para o rastreamento do câncer do colo. National Cancer Institute. Brazil. 2016http://bvsms.saude.gov.br/bvs/publicacoes/inca/rastreamento_cancer_colo_utero.pdf
2.Schiffman M, Solomon D. Findings to date from the ASCUS-LSIL triage study (ALTS). Arch Pathol Lab Med – Vol 127, August 2003.
3. Cuzik J. Viral Load as Surrogate for Persistence in Cervical Human Papillomavirus Infection. In: Franco, E. & Monsonego, J., New Developments in cervical cancer screening and prevention. 1997. Quebec, Canadá
4.Bosch FX, Sanjosé S. Chapter 1: Human Papillomavirus and cervical câncer – burden and assessment of causality. J Natl Cancer Inst Monogr 2003;31:20-8
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