Cytopathology : official journal of the British Society for Clinical Cytology · 2020
DNA ploidy measurement and human papillomavirus in abnormal cervical cytology.
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Costa Ane Francyne, Pogere Adriane, Pasinato Ana Paula Beltrame Farina, Bello Edson Jose Monteiro, Onofre Alexandre Sherlley Casimiro, Onofre Fabiana Botelho de Miranda
Аннотация
OBJECTIVE: To compare the efficacy of high-risk human papillomavirus (HR-HPV) and DNA image cytometry (DNA-ICM) status for identifying high-grade cervical intraepithelial neoplasia or worse (≥CIN2).
METHODS: This cross-sectional study was performed in women undergoing follow-up procedure after a previous abnormal cervical cytology. Cervical cells were collected for HPV detection and DNA ploidy measurement. Biopsy samples were taken for histological confirmation. Sensitivity and specificity values for ≥CIN2 detection with HR-HPV and DNA-ICM were determined.
RESULTS: HR-HPV was present in 74.5% of the women. The most frequent HPV infection was HPV 16, followed by HPV 31, 33 and 58. Aneuploidy was observed in 60.6% of all cases. Referral cytology revealed 78.0% sensitivity and 68.6% specificity for detecting a ≥CIN2 lesion. The HR-HPV test alone showed 92.7% sensitivity, albeit it was not statistically different from DNA-ICM (88.1%, P > .05). Positivity for HPV or DNA-ICM resulted in 100% sensitivity. Higher specificity was observed for the combination of HR-HPV and DNA-ICM (88.6%), with no difference from DNA-ICM alone (85.7%, P > .05).
CONCLUSION: DNA-ICM or HR-HPV positivity identified all cases of ≥CIN2 in women undergoing follow-up procedure after a previous abnormal cervical cytology. Routine cervical cancer screening could be improved by the incorporation of DNA-ICM as a complementary method to primary screening to identify which women need closer follow-up.
METHODS: This cross-sectional study was performed in women undergoing follow-up procedure after a previous abnormal cervical cytology. Cervical cells were collected for HPV detection and DNA ploidy measurement. Biopsy samples were taken for histological confirmation. Sensitivity and specificity values for ≥CIN2 detection with HR-HPV and DNA-ICM were determined.
RESULTS: HR-HPV was present in 74.5% of the women. The most frequent HPV infection was HPV 16, followed by HPV 31, 33 and 58. Aneuploidy was observed in 60.6% of all cases. Referral cytology revealed 78.0% sensitivity and 68.6% specificity for detecting a ≥CIN2 lesion. The HR-HPV test alone showed 92.7% sensitivity, albeit it was not statistically different from DNA-ICM (88.1%, P > .05). Positivity for HPV or DNA-ICM resulted in 100% sensitivity. Higher specificity was observed for the combination of HR-HPV and DNA-ICM (88.6%), with no difference from DNA-ICM alone (85.7%, P > .05).
CONCLUSION: DNA-ICM or HR-HPV positivity identified all cases of ≥CIN2 in women undergoing follow-up procedure after a previous abnormal cervical cytology. Routine cervical cancer screening could be improved by the incorporation of DNA-ICM as a complementary method to primary screening to identify which women need closer follow-up.