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Secondary gastric cancer malignancies following a breast cancer diagnosis: A population-based analysis
Alyson L Mahar1, Daniel J Kagedan2, Julie Hallet3
1Department of Public Health Sciences, Queen's University, Canada; Sunnybrook Research Institute, Toronto, Canada.
Objective:
To quantify the population-risk of developing gastric cancer (GC) following breast cancer (BC).
Methods:
GC incidence following a ductal or lobular BC were separately compared to incidence in the general United States population using SEER data.
Results:
GC rates were similar to the general population for ductal BC. Women aged 35-75 with lobular BC had a significantly higher incidence of GC; women aged 40-44 had the highest risk.
Conclusion:
The risk of secondary GC is high among young women diagnosed with lobular BC. More studies investigating the etiology and prevalence of familial GC syndromes at the population-level are needed.
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