Unbalanced Chromosomal Translocation, der(17)t(13;17)(q14;p11) in a Solid and Cystic Papillary Epithelial Neoplasm of the Pancreas

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Abstract
We report on a solid and cystic papillary epithelial neoplasm of the pancreas containing the unbalanced chromosome translocation der(17)t(13;17)(q14;p11), resulting in loss of 13q14→qter and 17p11→pter. Although the clinical and pathologic characteristics of this case are largely typical of this uncommon pancreatic neoplasm, the presence of cellular pleomorphism, tumor giant cells, and a DNA tetraploid tumor population suggest that this tumor may have an increased metastatic potential. The unbalanced translocation between chromosomes 13 and 17 and the genes flanking the breakpoints may prove to be markers for solid and cystic papillary epithelial neoplasm of the pancreas and provide insight into its histogenesis.