PREVALENCE OF CERVICAL NEOPLASIA LESIONS: RESULTS OF A CYTOLOGICAL SCREENING PERFORMEO IN THE REGION OF CAMPINAS, STATE OF SÃO PAULO, BRAZIL
Keywords:
diagnose, ulterine cervical neoplasms, screening, women's health, CampinasAbstract
Objective
To analyze the prevalence of cervical neoplastic lesions, based on cytological diagnoses.
Methods
A sample of 54,338 women who had a Papanicolaou smear test between January and December, 2003 within the public health service in the region of Campinas, Brazil was included.
Results
Prevalence per 700,000 women was distributed as follows: 744 cases of low-grade squamous intraepithelial lesion; 387 high-grade squamous intraepithelial lesion; 7 5 invasive squamous carcinoma; 7,054 cases of atypical squamous cells of undetermined significance; 2 7 abnormal glandular cells of undetermined significance, and 6 cases of adenocarcinoma in situ and invasive adenocarcinoma. A trend towards a decrease in incidence in relation to age was identified for the diagnoses of low-grade squamous intraepithelial lesion, high-grade squamous intraepithelial lesion and atypical squamous cells of undetermined significance S, while an increase was observed for the diagnoses of invasive squamous carcinoma, adenocarcinoma in situ and invasive adenocarcinoma. No significant variation was found with respect to the prevalence of abnormal glandular cells of undetermined significance diagnoses. No trend of increase ar decrease in the prevalence of lesions with respect.to time past since previous screening was verified.
Conclusion
There is higher incidence of !ow-grade squamous intraepithe/ial lesion, high-grade squamous intraepithelial lesion and atypica/ squamous ce!ls of undetermined significance among younger women. Higher incidence of invasive squamous carcinoma, abnormal glandular cells of undetermined significance, adenocarcinoma in situ and invasive adenocarcinoma occur among o/der women. Cytologica/ screening of this type, performed at interva!s of either one year or more, seems to have the sarne impact in cancer prevention, since no trend was observed towards increase or decrease in the prevalence of cervical cancer lesions.
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References
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