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- Our findings suggest that multigenotypic or non-16/18 hrHPV infections often produce deceptive lower-grade cytomorphology, which could result in underdiagnosis and delay of treatment. The HPV infection patterns may offer unrecognized benefit beyond HPV genotyping and should be considered during clinical risk evaluation of women with lower-grade cytology.

Our study demonstrated that 5% of women underwent co-testing with negative Pap tests had HGCL on follow-up biopsy. Absence of diagnostic cells was the leading cause for cytology discrepancy and interpretation variances were influenced by marked obscuring inflammation. HPV testing and genotyping had limited value in risk stratification due to extremely low PPV. Focused rescreening of hrHPV-positive NILM with obscuring factors may help reduce interpretation variances.

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