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ENGLISH ABSTRACT
JOURNAL ARTICLE
[The spectrum of cytogenetic chages in polyps of the large intestine with different histologic structure].
T︠S︡itologii︠a︡ i Genetika 2008 November
Cytogenetical study ofcolorectal polyps of different histological structures from 54 patients has been carried out. Domination of diploid karyotypes was shown. Abnormal karyotypes were found in 17 (31,5%) polyps: the most frequent anomalies were in adenoma while in hamartomatous polyps they were absent. The typical features of the karyotypes were numeric changes, such as additional copies of chromosomes 13, 7, 20, 18, 16 in some combinations. The polyps with high-grade dysplasia in all cases had abnormal karyotypes. Combinations of additional copies of chromosomes 13, 18, and 20 were observed in adenoma with dysplasia located near adenocarcinoma. We have studied the karyotype pecularities exactly in inflammatory polyps unlike the previous studies of ulcerative colitis, Cronh's disease and found 21,4% chromosomal anomalies.
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