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Background: The risk of a second primary cancer has increased along with the increasing life expectancies of colorectal cancer survivors.
Objective: We aimed to evaluate the incidence rate and risk factors of breast and gynecological (ovarian, uterine cervix/corpus) cancers among female colorectal cancer survivors.
Design: This is a retrospective population-based cohort study.
Settings: This study used data from the National Health Insurance Corporation of Korea.
Patients: Each patient with colorectal cancer diagnosed from 2007 to 2012 was followed until 2015 and compared with age-matched women without colorectal cancer at a 1:5 ratio.
Main Outcome Measures: The primary outcome was de novo breast/gynecological cancer. Patients with available medical checkup data were included in an additional analysis.
Results: We analyzed 56,682 patients with colorectal cancer and 288,119 age-matched noncolorectal cancer controls. The risk of breast/gynecological cancer was higher among patients with colorectal cancer than among controls (HR, 2.91; p < 0.001). The association with colorectal cancer was the highest for ovarian cancer (HR, 6.72), followed by uterine corpus cancer (HR, 3.99), cervical cancer (HR, 2.82), and breast cancer (HR, 1.85). This association remained consistent in the subgroup analysis of medical checkup data (14,190 patients with colorectal cancer, 71,933 controls). Among patients with colorectal cancer, those aged <55 years had a higher risk of breast/gynecological cancers than those aged >55 years (HR, 3.51 vs 2.59), and those with dyslipidemia had a higher risk of breast cancer than those without dyslipidemia (HR, 2.66 vs 2.06).
Limitations: This was a retrospective, population-based study. A prospectively designed study is needed to validate our conclusions.
Conclusions: Compared with the general population, patients with colorectal cancer carry a higher risk of developing secondary breast, ovarian, and uterine cancers. See Video Abstract at http://links.lww.com/DCR/A731.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6200373 | PMC |
http://dx.doi.org/10.1097/DCR.0000000000001203 | DOI Listing |
Cancer 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.
JACC Case Rep
September 2025
Department of Cardiovascular Surgery, Nagoya Heart Center, Nagoya, Japan.
Background: Capecitabine, an oral prodrug of 5-fluorouracil, is widely used for gastrointestinal malignancies. While its coronary toxicity is well documented, large-vessel complications such as aortic dissection are rarely reported.
Case Summary: We present a 65-year-old man with colorectal cancer who developed Stanford type A aortic dissection 3 days after initiating adjuvant capecitabine therapy.
Br J Surg
September 2025
Department of Digestive Surgery, CARPEM Comprehensive Cancer Centre, Georges-Pompidou European Hospital, AP-HP, Université Paris-Cité, Paris, France.
Rep Pract Oncol Radiother
August 2025
Cardiac Surgery and Transplantology Department, Poznan University of Medical Sciences, Poznan, Poland.
Background: The rising burden of colorectal cancer with a high prevalence of advanced stages of new-onset is reported worldwide. While applied, chemotherapy can extend patients' survival, and proper tailoring is paramount. Based on computed tomography results, the study aimed to point out potential prognostic factors of complete or partial response to the initial three months of chemotherapy in palliative colorectal (CRC) cancer.
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August 2025
Guangzhou Key Laboratory of Formula-Pattern Research Center, School of Traditional Chinese Medicine, The Fifth Affiliated Hospital of Jinan University (Heyuan Shenhe People's Hospital), Jinan University, Guangzhou, China.
Introduction: Colorectal cancer (CRC) is a prevalent malignant tumor of the digestive tract. The FOLFOX regimen (oxaliplatin + calcium folinate + 5-fluorouracil) serves as the primary treatment for advanced CRC clinically, yet its application is significantly limited by substantial toxic side effects. Erianin, a natural compound from Chinese medicine Lindl, demonstrates significant potential in both tumor growth inhibition and chemotherapy toxicity reduction.
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