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Genomic alterations in distal bile duct carcinoma by comparative genomic hybridization and karyotype analysis

✍ Scribed by Arjen M. Rijken; Jie Hu; Elizabeth J. Perlman; Laura A. Morsberger; Patricia Long; Scott E. Kern; Ralph H. Hruban; Charles J. Yeo; Constance A. Griffin

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
237 KB
Volume
26
Category
Article
ISSN
1045-2257

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✦ Synopsis

We report genomic abnormalities identified in 14 human primary common bile duct carcinomas analyzed by cytogenetics or comparative genomic hybridization, or both. Combining the results of the two methods of analysis, 11 chromosomal arms were observed to be gained in whole or in part, and 9 chromosomal arms were lost in whole or in part in at least four tumors each. The most frequently lost chromosomal regions were, in decreasing order: 18q (eight tumors); 6q and 10p (seven tumors each); 8p, 12q, and 17p (six tumors each); and 7q, 12p, and 22q (four tumors each). The most frequently gained regions were 8q and 20q (six tumors each); 12p, 17q, and Xp (five tumors each) ; and 2q, 6p, 7p, 11q, 13q, and 19q (four tumors each). These results are similar to those we have previously reported in pancreatic cancer and suggest that carcinomas of the common bile duct and pancreas share a number of genetic changes.

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