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Prospective multicenter study on CA 125 in postmenopausal pelvic masses

T Maggino1, A Gadducci, V D'Addario

  • 1Obstetric and Gynecologic Institute, University of Padua, Italy.

Gynecologic Oncology
|August 1, 1994
PubMed
Summary

The CA 125 blood test, combined with ultrasound, significantly improves the detection of ovarian cancer in postmenopausal women with pelvic masses. This combination enhances diagnostic accuracy, aiding in treatment decisions for suspected malignant epithelial ovarian tumors.

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Area of Science:

  • Gynecologic Oncology
  • Medical Diagnostics
  • Biomarker Analysis

Background:

  • Pelvic masses in postmenopausal women pose a diagnostic challenge for identifying malignant epithelial ovarian tumors.
  • Accurate differentiation between benign and malignant pelvic masses is crucial for timely and appropriate patient management.

Purpose of the Study:

  • To evaluate the diagnostic performance of CA 125 compared to transabdominal ultrasound (US) for detecting malignant epithelial ovarian tumors in postmenopausal women with pelvic masses.
  • To assess the combined diagnostic value of CA 125 and US in this patient population.

Main Methods:

  • A study involving 388 postmenopausal patients with pelvic masses, assessed via gynecologic examination, US, and CA 125 levels.
  • Stratification based on US findings (benign, equivocal, malignant) and CA 125 levels (negative, borderline, positive).

Related Experiment Videos

  • Calculation of specificity, sensitivity, predictive values, and accuracy against histological examination in 290 surgically treated patients.

    • Main Results:

    • CA 125 (> 65 U/ml) showed high specificity (92.5%) and accuracy (83.3%) for ovarian malignancy.
    • Transabdominal ultrasound (US) demonstrated high sensitivity (84.9%) with 80.3% accuracy.
    • The combination of US and CA 125 (> 65 U/ml) significantly improved diagnostic accuracy to 94.3%, with high specificity (96.1%) and sensitivity (91.7%).

    Conclusions:

    • CA 125 determination is a highly specific biomarker for predicting ovarian cancer in postmenopausal women with pelvic masses.
    • Combining CA 125 with US substantially enhances diagnostic accuracy, aiding in therapeutic decision-making.
    • This combined approach helps differentiate patients requiring prompt intervention from those suitable for less invasive diagnostic procedures.