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Detection of numerical chromosome aberrations in leukoplakia and squamous epithelial carcinomas of the head-neck area using fluorescence in situ hybridization

Lenz, C.; Dietz, A.; Pfuhl, A.; Finckh, M.; Conradt, C.; Weidauer, H.; Bosch, F.X.

Hno 48(5): 367-371

2000

ISSN/ISBN: 0017-6192
PMID: 10872117
DOI: 10.1007/s001060050582
Accession: 045742078
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The tumorigenesis of head and neck squamous cell carcinoma (HNSCC) has been proposed to represent a multistep process characterized by an accumulation of genetic alterations. To study numerical chromosomal aberrations and chromosomal imbalances, biopsies of 11 malignant tumours and biopsies of 16 oral premalignant lesions (leukoplakias) were analyzed by fluorescence in situ hybridization (FISH) using centromeric probes for chromosomes, 1, 7, 9, 10 and 17. The comparison of the alterations observed in simple leukoplakias (group 1, n = 8), dysplastic leukoplakias (group 2, n = 8) and malignant tumours (group 3, n = 11) by the Cochran-Armitage Trend Test revealed an increasing number of numerical chromosomal abberations. This difference was statistically highly significant (p < 0.001). The data open up the possibility that FISH analysis might help to better characterize the progression of premalignant oral leukoplakias.

Detection of numerical chromosome aberrations in leukoplakia and squamous epithelial carcinomas of the head-neck area using fluorescence in situ hybridization

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