Purpose: An increased risk of prostate cancer is currently not considered a part of the Lynch syndrome spectrum.
The purpose of this study was to retrospectively examine prostate cancer incidence in the Lynch syndrome cohort at the Ohio State University in comparison with that in the general population.
Methods:We included all males diagnosed with Lynch syndrome from June 1998 to June 2012 at the Ohio State University and obtained baseline information including cancer history. If patients had not been seen in the 12 months before June 2012, they were contacted to document changes in their cancer history. We compared prostate cancer incidence among the Lynch syndrome families with that of the general population by using the Surveillance, Epidemiology, and End Results registry 1999-2009.
Results:Of the 188 males identified with Lynch syndrome, 11 males were diagnosed with prostate cancer during the study period. The ratio of observed to expected numbers of prostate cancer cases resulted in a standardized rate ratio of 4.87 (95% confidence interval: 2.43-8.71). Impaired mismatch repair expression and microsatellite instability were seen in one out of two prostate cancer specimens available for testing.
Conclusion:Males with Lynch syndrome had a nearly fivefold increased risk of developing prostate cancer but did not appear to have earlier onset or a more aggressive phenotype.
Written by:
Haraldsdottir S, Hampel H, Wei L, Wu C, Frankel W, Bekaii-Saab T, de la Chapelle A, Goldberg RM. Are you the author?
Division of Medical Oncology, Department of Internal Medicine, The Ohio State University Medical Center, Columbus, Ohio, USA; Division of Human Genetics, Department of Internal Medicine, The Ohio State University Medical Center, Columbus, Ohio, USA; Center for Biostatistics, The Ohio State University Medical Center, Columbus, Ohio, USA; Department of Pathology, The Ohio State University Medical Center, Columbus, Ohio, USA; Molecular Biology and Cancer Genetics Program, The Ohio State University Medical Center, Columbus, Ohio, USA.
Reference: Genet Med. 2014 Jan 16. Epub ahead of print.
doi: 10.1038/gim.2013.193
PubMed Abstract
PMID: 24434690
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