Premium
Pap test in a high‐risk population comparison of conventional and liquid‐base cytology
Author(s) -
Utagawa Maria Lúcia,
Miranda Pereira Sônia Maria,
Makabe Sérgio,
Yoshié Sakamoto Maeda Marina,
Marques José A.,
Santoro Carmen L.F.,
Di Loreto Celso,
Aguiar Luciana Silva,
Pitolli Janaina Érika,
Das Dores Gerson Botacini,
Castelo Adauto,
Filho Adhemar Longatto
Publication year - 2004
Publication title -
diagnostic cytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.417
H-Index - 65
eISSN - 1097-0339
pISSN - 8755-1039
DOI - 10.1002/dc.20118
Subject(s) - medicine , liquid based cytology , cytology , squamous intraepithelial lesion , population , atypia , hybrid capture , gynecology , cervical intraepithelial neoplasia , pathology , cervical cancer , cancer , environmental health
Abstract Liquid‐based cytology (LBC) is believed to have better sensitivity than conventional smears (CSs) and offers the possibility to perform molecular assay. The goal of this work was to study the performance of CS and LBC in a high‐risk population and to compare the results with the hybrid capture (HC) II for high‐risk human papillomavirus (HPV). Samples were collected from selected women with clinical suspicions of low genital tract lesion at Pérola Biygnton Hospital (São Paulo, Brazil). After CS preparation, the brush was introduced in the endocervix and a new sample was collected and rinsed in the preservative medium of the system. The residual material was used to HC2. From 925 cases, LBC was unsatisfactory in 4 (1.51%) cases and CS was unsatisfactory in 100 cases (10.81%); among theses cases HC2 + reactions was observed in 54 (54%) CSs and 3 (21.4%) LBCs. Considering cases with atypia of undetermined significance (squamous and glandular), 85 (77.27%) cases from LBC and 44 (86.4%) from CS were positive for HC2 assay for high‐risk DNA‐HPV. The difference among the methods was not significant ( P < 0.38). The diagnosis improvement of LBC in comparison with CS was 86% in satisfactory samples, 92.76% in undetermined atypical lesions (including glandular), 83% in positive low‐grade squamous intraepithelial lesions (LSIL + ), and 86.84% in high‐grade SIL + (HSIL + ). HC2 + reactions were observed in 144 CS cases and 266 LBC cases with abnormalities. Our results have showed that LBC was superior to CS in a high‐risk population to detect lesions with high concordance with HC2 + reactions; CSs also exhibit a high concordance with HC2 assay but with inferior performance to detect lesions. Diagn. Cytopathol. 2004;31:169–172. © 2004 Wiley‐Liss, Inc.