80% of Young Colorectal Cancer Patients in New Study Were Diagnosed Late, Putting Focus on Teen Warning Signs
Researchers found 80% of patients were diagnosed at stage 3 or 4, with 37% relapsing and 45% dying after treatment.
- On Saturday, researchers presenting at the American Academy of Pediatrics national conference revealed that most colorectal cancer cases in adolescents are aggressive and diagnosed at advanced stages.
- The study of 84 patients, with a median age of 16, found that 80% were diagnosed at Stage 3 or Stage 4, meaning the cancer had already spread.
- Patients frequently reported back or abdominal pain and bowel habit changes, yet faced poor outcomes; 45% eventually died and 37% experienced cancer recurrence.
- Danielle Cameron of Mass General Brigham Cancer Institute warned that adolescents are a "unique and vulnerable population" at higher risk for aggressive cancers and diagnostic delays.
- Christopher Lieu of the University of Colorado Anschutz advised that doctors should remain mindful of potential cancer when evaluating vague symptoms in young patients.
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Ultraprocessed Foods Linked to Early Changes in Gut Health
Colorectal cancer was once primarily a disease of older adults, but that pattern has been shifting in the past decades. Rates of early-onset colorectal cancer, meaning cases diagnosed before age 50, have been rising in 27 of 50 countries and territories examined in a global analysis. The trend was first documented in high-income Western nations, but it now extends to countries in Eastern Europe, Asia, and Latin America and the Caribbean.1 In the…
Colorectal Cancer Rates Rising 2% Annually in Young Adults Since 2000s
Colorectal cancer rates among children, teens, and young adults have risen about 2% annually since the early 2000s, with tumors showing distinct genetic signatures, aggressive features, and poorer treatment responses compared to those in older adults. The trend appears driven by diet, sedentary lifestyles, and environmental factors rather than earlier detection.
Colorectal cancer is rare in teens. When it strikes, it is often particularly aggressive
Natalie Phelps, a 43-year-old patient with metastatic colorectal cancer, shows a signage kit for colorectal cancer on Bainbridge Island, Wash., on Wednesday, April 2, 2025.
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