Related Experiment Video
Updated: Jun 26, 2026
09:48
An Orthotopic Endometrial Cancer Model with Retroperitoneal Lymphadenopathy Made From In Vivo Propagated and Cultured VX2 Cells
Published on: September 12, 2019
Radiation-associated endometrial cancer
Sanjeev Kumar1, Jay P Shah, Christopher S Bryant
1Departments of Obstetrics and Gynecology, Division of Gynecologic Oncology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA. skumar@med.wayne.edu
Obstetrics and Gynecology
|January 22, 2009
Summary
Radiation-associated endometrial cancers have a poorer prognosis than sporadic second endometrial cancers. These radiation-linked cancers are more often nonendometrioid, poorly differentiated, and advanced stage, leading to significantly lower survival rates.
Area of Science:
- Gynecologic Oncology
- Radiation Oncology
- Cancer Epidemiology
Background:
- Endometrial cancer can arise as a second primary cancer after pelvic radiation therapy for other pelvic malignancies.
- Understanding the distinct characteristics and outcomes of radiation-associated endometrial cancers compared to sporadic second endometrial cancers is crucial for patient management.
Purpose of the Study:
- To compare prognostic variables and survival rates between endometrial cancers associated with prior pelvic radiation and sporadic second endometrial cancers.
Main Methods:
- Utilized the Surveillance, Epidemiology, and End Results (SEER) database (1973-2005) to identify cohorts.
- Cases: endometrial cancer post-pelvic radiation; Controls: sporadic second endometrial cancer without prior pelvic radiation.
- Statistical analyses included chi-squared tests, t-tests, Kaplan-Meier, and Cox proportional hazards analysis.
Main Results:
- Radiation-associated endometrial cancers (n=205) were diagnosed at a younger mean age (65 vs. 68 years) with a longer latency (110 vs. 77 months) compared to sporadic cases (n=1001).
- Radiation-associated cancers exhibited higher rates of nonendometrioid histology (76.2% vs. 51%), poor differentiation (58% vs. 28%), and advanced stage (43% vs. 16%).
- Five-year survival was significantly lower for radiation-associated cancers (27.1% vs. 57.1%; P<.001), with a multivariable hazard ratio for death of 1.4 (P=.002).
Conclusions:
- Radiation-associated endometrial cancers present with a grave prognosis due to their aggressive histological and staging characteristics.
- Longer latency and advanced stage at diagnosis suggest potential delays in clinical presentation and diagnosis for radiation-associated cases.
