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Correlation between preoperative imaging biomarkers and histological prognostic factors in endometrial cancer: A
Giorgia Perniola1, Martina Derme1, Lucia Manganaro2
1Department of Maternal and Child Health and Urological Sciences, Umberto I Hospital, University of Rome "Sapienza", Rome, Italy.
Purpose:
We compared transvaginal ultrasound (TVUS) and magnetic resonance imaging (MRI) for detecting myometrial infiltration, cervical involvement, and for measuring tumor volume in endometrial cancer patients. We also correlated tumor volume to worse histological prognostic factors.
Methods:
We recruited women with a histological diagnosis of endometrial cancer between March 2019 and March 2021. Inclusion criteria were: age ≥ 18 years, written informed consent, biopsy-proven endometrial cancer, absence of previous neoadjuvant chemo- or radiotherapy treatment, patient suitable for primary surgery. Exclusion criteria were: advanced disease stage and other coexisting malignant tumors. TVUS and MRI were used, in the absence of any contraindication. We compared the preoperative imaging results with final histopathology.
Results:
The accuracy of TVUS and MRI in evaluating myometrial infiltration, cervical invasion and tumor volume were comparable. A tumor volume ≥2 ml showed a positive correlation with worse histological prognostic factors, such as high tumor grade, diffuse lymphvascular space involvement (LVSI) and deep myometrial invasion (p < 0.05).
Conclusion:
TVUS should be used as first-line imaging modality, being more available, cost-effective, and more acceptable by patients. A careful local staging of endometrial cancer patients before surgery is fundamental in order to improve tailored treatment and minimize costs.
