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‹ Mon · 13 Apr 2026
Early cancer detection or prevention

Optimization of methylated DNA markers to rule out endometrial cancer in patients with abnormal uterine bleeding.

A simple two-marker blood test from vaginal fluid can detect endometrial cancer with 96% accuracy, potentially sparing some women from invasive procedures.

Researchers at Mayo Clinic optimized methylated DNA markers from 19 to a 2-marker panel for detecting endometrial cancer in self-collected vaginal fluid, achieving 96% sensitivity and 97% AUC in prospective validation. This non-invasive approach could replace or triage invasive endometrial sampling in patients presenting with abnormal uterine bleeding.

What the study was

Study design
Prospective marker optimization and independent validation study
Population
Women ≥45 years with abnormal uterine bleeding/postmenopausal bleeding, plus EC/AEH cases ≥18 years; self-collected vaginal fluid via tampon
Category
Early Detection
Maturity
Validated
Journal
Gynecologic Oncology

Why it surfaced

Prospectively validated non-invasive endometrial cancer detection from self-collected vaginal fluid with 96% sensitivity and AUC 0.97; potentially practice-changing for reducing invasive biopsy in high-risk patients.

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