For Gert-Jan de Wit and Tanya Bisseling, a shared genetic predisposition led to an extraordinary and life-altering decision: the removal of their stomachs. The couple, aged 32, both carry a rare mutation in the CDH1 gene, significantly increasing their risk of developing aggressive stomach cancer. Their story, recently reported by De Telegraaf, highlights the tricky choices faced by individuals with inherited cancer risks and the growing field of preventative medicine.
The CDH1 gene is linked to hereditary diffuse gastric cancer, a particularly aggressive form of the disease. It also elevates the risk of lobular breast cancer in women. Because of this heightened risk, doctors sometimes recommend a preventative gastrectomy – the surgical removal of the stomach – to avoid potentially fatal tumors. Gert-Jan and Tanya underwent this procedure, a decision they describe as having “no other choice,” and are now navigating life without a vital organ, requiring significant adjustments to their diets and ongoing medical monitoring. This complex genetic condition and the difficult decisions it necessitates are becoming increasingly understood as genetic testing becomes more accessible.
Understanding the CDH1 Gene and Hereditary Diffuse Gastric Cancer
The CDH1 gene provides instructions for making a protein called E-cadherin, which plays a crucial role in cell adhesion. Mutations in this gene disrupt the normal function of E-cadherin, leading to a loss of cell-to-cell connections and an increased susceptibility to cancer development. Hereditary diffuse gastric cancer (HDGC) is a rare syndrome, accounting for a small percentage of all stomach cancers, but carries a extremely high lifetime risk for those who inherit the CDH1 mutation. De Telegraaf reports that both Gert-Jan and Tanya faced this stark reality.
Following a gastrectomy, individuals must completely relearn how to eat, adapting to a drastically altered digestive system. The stomach plays a vital role in breaking down food and regulating its release into the small intestine. Without it, the body struggles to absorb nutrients effectively, leading to potential deficiencies and requiring a carefully managed diet. Both Gert-Jan and Tanya have had to produce permanent changes to their eating habits and rely on regular medical follow-up to ensure their health and well-being.
Implications for Families and Genetic Screening
The implications of a CDH1 mutation extend beyond the individual diagnosed with the gene. Family members are also at risk of carrying the mutation and, developing cancer. Genetic screening, counseling, and early involvement of specialists are crucial for assessing risks and discussing potential treatment options. This proactive approach allows families to make informed decisions about preventative measures, such as regular endoscopic surveillance or, in some cases, preventative gastrectomy. The decision to undergo genetic testing is deeply personal, and individuals should be fully informed about the potential benefits and limitations before proceeding.
The case of Gert-Jan and Tanya underscores the importance of understanding family medical history. A history of stomach cancer, particularly at a young age, should prompt consideration of genetic testing for CDH1 mutations. Early detection and preventative measures can significantly reduce the risk of developing this aggressive form of cancer. The availability of genetic testing and counseling is expanding, making it increasingly accessible for individuals and families at risk.
Living Without a Stomach: A New Normal
Adjusting to life without a stomach is a significant challenge. Individuals require frequent, small meals to avoid dumping syndrome, a condition where food moves too quickly through the digestive system, causing nausea, vomiting, and diarrhea. Nutrient absorption is also compromised, often necessitating vitamin and mineral supplementation. Long-term follow-up with a gastroenterologist and a registered dietitian is essential to manage these challenges and maintain optimal health. The experience of Gert-Jan and Tanya highlights the resilience of the human spirit and the ability to adapt to even the most profound medical challenges.
The couple’s story, as reported on February 23, 2026, by De Telegraaf, serves as a powerful reminder of the impact of genetic predispositions to cancer. It also emphasizes the importance of preventative measures and the ongoing need for research into hereditary cancer syndromes.
As of today, February 23, 2026, the next scheduled follow-up for Gert-Jan and Tanya will be a routine check-up with their gastroenterologist in three months to monitor their nutritional status and overall health. Further updates on their journey and advancements in HDGC research will be reported as they grow available.
Have you or a loved one been affected by hereditary cancer? Share your thoughts and experiences in the comments below. Please also share this article to raise awareness about the importance of genetic screening and preventative care.
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