Atipias de celulas glandulares do colo uterino e detecção de papilomavirus humano de alto risco oncogenico

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

Objectives: Detection of high-risk human papillomavirus(HPV) DNA by hybrid capture 2 (HC 2) in women referred due to atypical glandular cells (AGC) in the primary screening. Subjects and Methods: A cross-sectional study was conduded on women referred due to AGC or adenocarcinoma in situ (AIS) in the primary screening. These women were compared with a group that had high-grade squamous intraepitheliallesion (HSIL). The study was conduded at the Cervical Patology Ambulatory and Cytology Laboratory of the Centro de Atenção Integral à Saúde da Mulher at the Universidade Estadual de Campinas from November 2001 to March 2004. Cervical sample had been colleded for conventional cytology and HPV testing by HC II. The colposcopy had been performed and all women with persistent cytology abnonnalities or colposcopy abnormalities were submitted a cervical biopsy or conization.Results: In 91 women induded in the first paper, a second Pap smear was taken and HPV-DNA test was performed using HC II. The second Pap smear showed no abnormalities in 28 (31%) cases, ACG in 17 (19%) cases and HSIL or worse in 24 (26%). HC II test was positive in 36% of the altogether cases. Considering the second Pap smear diagnosis, HPV-DNA was deteded in 87% of the women with HSIL, 100% of women with AIS, 24% of women with AGC and only in 11% of the women with no abnormalities. In the second paper, the overall prevalence of HPV-DNA was 38%. HPV-DNA was detected in 93% ofthe women with HSIL associated with AGC and in 71% of women with AIS at Pap smear, being significantly higher when compared with the prevalence (29%) in women with AGC alone. Forty-five women (30.8%) had dinically significant histologicallesions (CIN 2 or worse). High-risk HPV-DNA was detected in only 16% of the women without significant abnormalities in biopsy, in contrast to 96% ofthose who had CIN 2 or CIN 3 and 75% of women with AIS. Women with invasive carcinoma (squamous cells or adenocarcinoma) had over 75% of HPVDNA positivity. The last paper histological analysis disdosed 38 (15%) cervicitis, 194 (75%) squamous lesions and 15 (9%) glandular neoplasia. Only 30% of AGC-HPV negative patients have a pathologically proven cervical lesion, whereas 76% of women with AGC-HPV positive have been diagnosed with some squamous or glandular lesion. In women with AGC-HSIL, the proportion with significant histological lesion was higher when HPV test was positive. Most (95%) of the lesions in patients with AGC-HSIL were of squamous nature, and HPV do not contribute its differentiation trom glandular. Conclusion: The use of the second Pap smear combined with HPV-DNA may improve the management of women with AGC detected in the primary screening. HPV-DNA detection was significantly associated with the severity of cervicallesion (CIN 2 or worst) in women referred for AGC or AIS in their Pap smear. HPV test should help to identify significant squamous or glandular lesion among women referred due to glandular or squamous abnormalitiesat Pap smear, however the test are unable to discriminate glandular from squamous lesion

ASSUNTO(S)

biologia molecular adenocarcinoma dna citologia histopatologia colo uterino - cancer

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