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Should high-risk adolescents have Papanicolaou tests?
Ly T Ma1, Gerald A Campbell, Gwyn Richardson
1Department of Pathology, Division of Cytopathology, University of Texas Medical Branch, Galveston, TX 77555, USA.
Background:
The current American College of Obstetricians and Gynecologists guidelines state that cervical cancer screening should begin at age 21 years, regardless of sexual or obstetric history. However, previous studies have demonstrated that there is a small but significant subset of high-risk adolescents with extensive sexual and obstetric history who harbor a significant squamous cervical lesion. The objective of the current study was to use histologic and demographic data from adolescents (aged <21 years) who received Papanicolaou (Pap) tests to determine whether they benefited from early cervical cancer screening.
Methods:
Adolescent girls who had Pap tests between 2000 and 2010 were included in the study. Demographic data, including obstetric history, number of sexual partners, age of first coitus, age at first pregnancy, menarche, smoking history, and Chlamydia and syphilis infection, were analyzed for associations with levels of cervical dysplasia.
Results:
Of 56,785 adolescent Pap tests, 277 (0.5%) were diagnosed as high-grade squamous HSIL, and 56 of those Pap tests (20%) were from patients who had grade 3 cervical intraepithelial neoplasia (CIN-3) on subsequent biopsy and/or excision. One patient had microinvasive cervical carcinoma identified on loop electrosurgical excision procedure at age 27 years after an HSIL Pap test. Increased parity was associated significantly with higher rates of CIN-3.
Conclusions:
The study findings indicated that current American College of Obstetricians and Gynecologists guidelines to begin Pap testing at age 21 years are appropriate for the majority of adolescents, because the rate of HSIL is very low, and the risk for invasive carcinoma is minimal. Although higher parity was associated with a significantly increased grade of CIN, the conclusions are questionable because of the significant amount of missing demographic data points. That being said, this study should lead to other similar studies to determine any association of higher grade CIN with adolescent sexual and obstetric history.
