Archives of gynecology and obstetrics · 2013
Cervical cytology with a diagnosis of atypical squamous cells, cannot exclude high-grade squamous intraepithelial lesion (ASC-H): a follow-up study with corresponding histology and significance of predicting dysplasia by human papillomavirus (HPV) DNA testing.
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Gilani Syed M, Tashjian Randy, Fathallah Lamia
Аннотация
OBJECTIVES: To evaluate the clinical significance of "atypical squamous cells, cannot exclude high-grade squamous intraepithelial lesion" ASC-H by comparing the original cytologic findings with follow-up tissue biopsies, and its association with high-risk HPV.
METHODS: A total of 235,518 ThinPrep Pap tests were performed at our institution from January 2008 through December 2010, but only 727 (0.3%) of these cases were diagnosed as ASC-H.
RESULTS: Of the 309 cases diagnosed as ASC-H on cytology for which follow-up histologic material was available, 120 (38.8%) were definitively diagnosed as high-grade dysplasia (CIN 2/3) and 75 (24.2%) showed features of low-grade dysplasia (CIN 1). We observed that the incidence of dysplasia in patients less than 30 years of age was 73.4% (113/154) and 48.3% (14/29) in patients greater than 49 years of age (p = 0.001). There were 71 cases for which high-risk HPV DNA testing was conducted. HPV DNA was found to be positive in 41 of the dysplastic cases (CIN 1 = 18 cases and CIN 2/3 = 23) and negative in six of the dysplastic cases (CIN1 = 2 and CIN2/3 = 4).
CONCLUSION: We conclude that cases diagnosed as ASC-H should be followed-up with caution as they are strongly associated with dysplasia of any grade (63.1%), especially high-grade dysplasia (38.8%). Reflex HPV DNA testing is an important predictor of dysplasia with a positive predictive value of 87.2% in our study.
METHODS: A total of 235,518 ThinPrep Pap tests were performed at our institution from January 2008 through December 2010, but only 727 (0.3%) of these cases were diagnosed as ASC-H.
RESULTS: Of the 309 cases diagnosed as ASC-H on cytology for which follow-up histologic material was available, 120 (38.8%) were definitively diagnosed as high-grade dysplasia (CIN 2/3) and 75 (24.2%) showed features of low-grade dysplasia (CIN 1). We observed that the incidence of dysplasia in patients less than 30 years of age was 73.4% (113/154) and 48.3% (14/29) in patients greater than 49 years of age (p = 0.001). There were 71 cases for which high-risk HPV DNA testing was conducted. HPV DNA was found to be positive in 41 of the dysplastic cases (CIN 1 = 18 cases and CIN 2/3 = 23) and negative in six of the dysplastic cases (CIN1 = 2 and CIN2/3 = 4).
CONCLUSION: We conclude that cases diagnosed as ASC-H should be followed-up with caution as they are strongly associated with dysplasia of any grade (63.1%), especially high-grade dysplasia (38.8%). Reflex HPV DNA testing is an important predictor of dysplasia with a positive predictive value of 87.2% in our study.