Genotype/phenotype of familial pancreatic cancer. |
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Authors: | Randall E Brand Henry T Lynch |
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Affiliation: | Department of Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, and Section of Gastroenterology, Evanston Northwestern Healthcare, 2100 Pfingsten Road, Glenview, IL 60026, USA. rbrand@enh.org |
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Abstract: | It is estimated that 5% to 10% of pancreatic cancer cases are attributable to hereditary factors. We believe that the number of cases that are genetic in etiology are even greater, however, based not on a classic autosomal dominant pattern of inheritance but rather when one takes into account low-penetrant inherited susceptibility factors. There is also a growing recognition that the development of pancreatic cancer in pancreatic cancer-prone families is dependent not only on genetic variables but on nongenetic factors. The aim of this article is to review the challenges in identifying pancreatic cancer-prone families and how environmental factors interact with genetic factors in these families. |
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