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Colorectal cancer (CRC) is the third leading cause of cancer death for men and women in the United States, with an estimated 52 580 people expected to die in 2022. Most frequently, CRC is diagnosed among persons aged 65 to 74 years. However, among persons younger than 50 years, incidence rates have been increasing since the mid-1990s. In 2021, partially because of the rising incidence, the U.S. Preventive Services Task Force (USPSTF) recommended CRC screening for adults aged 45 to 49 years (Grade B recommendation). Options for CRC screening include stool-based and direct visualization tests. The USPSTF did not recommend a specific screening test; rather, its guidance was to select a test after a discussion with the patient. Here, a primary care physician and a gastroenterologist discuss the recommendation to begin CRC screening at age 45, review options for CRC screening, and discuss how to choose among the available options.
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http://dx.doi.org/10.7326/M22-1961 | DOI Listing |
Cancer Res
September 2025
Morgridge Institute for Research, Madison, Wisconsin, United States.
Patient-derived cancer organoids (PDCOs) are a valuable model to recapitulate human disease in culture with important implications for drug development. However, current methods for rapidly and reproducibly assessing PDCOs are limited. Label-free imaging methods are a promising tool to measure organoid level heterogeneity and rapidly screen drug response in PDCOs.
View Article and Find Full Text PDFCancer Epidemiol Biomarkers Prev
September 2025
Brigham and Women's Hospital, Boston, MA, United States.
Background: Colorectal cancer (CRC) risk models routinely adjust for endoscopic screening because of a) possible confounding with other risk factors and b) possible alteration of natural history of the disease due to adenoma detection and removal.
Methods: In this study, we defined a subject as screen-covered (SC) if a colonoscopy was performed in the past 10 years, and not screen-covered (NSC) otherwise. We created CRC risk models separately for SC and NSC subjects (HRSC, HRNSC) and then obtained a screening-coverage adjusted HR estimate (HRfull) based on a weighted average of ln(HRSC) and ln(HRNSC) with weight equal to the proportion of SC person-time in the NHS population.
Front Oncol
August 2025
Jiaxing Hospital of Traditional Chinese Medicine, Jiaxing University, Jiaxing, Zhejiang, China.
Objective: The diagnosis of precancerous lesions of colorectal cancer (CRC) presents significant challenges in clinical practice. In this study, we conducted a clinical investigation using the UCAD technique after analyzing chromosomal copy number variations (CNVs) in formalin-fixed, paraffin-embedded (FFPE) samples from various pathological stages, aiming to evaluate the value of detecting chromosomal instability (CIN) in CRC diagnosis.
Methods: Based on colonoscopic pathological findings, we selected 39 FFPE specimens of tubular adenomas, 8 FFPE specimens of villous adenomas, 16 cases diagnosed as tubular-villous adenomas, and 14 cases without defined pathological subtype classification.
Front Cell Dev Biol
August 2025
Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases IRCCS "L. Spallanzani", Rome, Italy.
The human microbiota is composed of a complex community of microorganisms essential for maintaining host homeostasis, especially in the gastrointestinal tract. Emerging evidence suggests that dysbiosis is linked to various cancers, including colorectal cancer (CRC). The microbiota contributes to CRC development and progression by influencing inflammation, genotoxic stress, and key cell growth, proliferation, and differentiation pathways.
View Article and Find Full Text PDFFront Public Health
September 2025
King's Daughters Medical Center, University of Kentucky, Ashland, KY, United States.
Using precision analytics approaches with population health data helps identify localized patterns of social determinants and comorbidities, supporting the design of tailored interventions. The University of Kentucky College of Public Health (UKCPH) and UK King's Daughters (UKKD) have partnered to create a Precision Public Health Alliance (PPHA) applying precision analytics to UKKD electronic health records (EHR) as well as secondary datasets to map social, demographic, and clinical comorbidity factors onto colorectal cancer (CRC) screening data in UKKD's rural service area (the northeastern Kentucky counties of Boyd, Carter, Greenup, and Lawrence and southeast Ohio county of Lawrence). In addition to UKKD and UKCPH clinicians and researchers, PPHA includes a community-based Action Team of local social services, behavioral health, and public health agencies and Cooperative Extension agents responsible for translating findings into quality improvement priorities.
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