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- W44863653 abstract "UNLABELLED Precancerous changes in the epithelium of the cervix uteri include low- and high-grade squamous intraepithelial lesions (LGSIL and HGSIL). Morphologically, these must be differentiated, among other conditions, immature squamous metaplasia (ISM) of the cervix uteri. MATERIALS AND METHODS This study involved 119 cases divided into 3 groups: 1) LGSIL (n = 28); 2) HGSIL (n = 56); 3) ISM (n = 35). An immunohistochemical study was conducted using antibodies to p16INK4a, CK17, and Ki-67 according to the standard protocol. RESULTS Ki-67 expression was mainly low and moderate in 67.9% of cases in the LGSIL group; it was seen in 100% of cases in the HGSIL group, being significant in 73.5%. In the ISM group, Ki-67 was identified in 65.7% of cases, most of which demonstrated a low-to-moderate expression. In the LGSIL group, the expression of p16INK4a was recorded in 46.4% of cases. In the HGSIL group, the reaction was observed in 73.2% of cases; of them 57.2% it was strong. In the ISM group, the reaction was chiefly low in 38.6% of cases. In the LGSIL group, CK17 expression was found in 17.9% of cases. In the HGSIL group, the reaction was recorded in 19.7% of cases, the expression being predominantly low. In the ISM group, the marker was detectable in 88.5% of cases; of them 51.4% showing a high expression. The expressions of p16NK4a and Ki-67 were statistically significantly higher in the HGSIL group (p < 0.05) than those in the LGSIL and ISM groups. On the contrary, the expression of CK1 7 was significantly higher in the ISM group (p < 0.05) than in the HGSIL and LGSIL groups. Thus, evaluation of p16INK4a, Ki-67, and CK17 expressions is a valuable diagnostic tool in the differential diagnosis of HGSIL, LGSIL, and ISM." @default.
- W44863653 created "2016-06-24" @default.
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- W44863653 date "2011-03-01" @default.
- W44863653 modified "2023-09-23" @default.
- W44863653 title "[Differential diagnosis of precancerous and regenerative changes in the epithelium of the cervix uteri, by applying an immunohistochemical study]." @default.
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