Preoperative Risk Stratification of Endometrial Carcinoma: L1CAM as a Biomarker

International Journal of Gynecological Cancer : Official Journal of the International Gynecological Cancer Society
Annukka PasanenRalf Bützow

Abstract

Preoperative or intraoperative risk assessment models are used to stratify patients with endometrial carcinoma to lymphadenectomy. Our aim was to determine whether preoperative analysis of L1 cell adhesion molecule (L1CAM) can improve risk assessment. Immunohistochemical L1CAM staining was performed on endometrial biopsies of 241 patients and paired hysterectomy samples of 75 patients. Risk assessment models based on preoperative histologic type and grade, myometrial invasion, and/or tumor diameter and alternative models incorporating preoperative L1CAM were compared with regard to their capability of predicting lymph nodal or distant metastasis. Soluble L1 levels were measured by enzyme-linked immunosorbent assay in serum samples of 40 patients with endometrial carcinoma. The concordance rate between L1CAM staining results of preoperative and hysterectomy samples was moderate (κ = 0.586, P < 0.0001). Preoperative L1CAM expression was associated with nonendometrioid histology, lymph node involvement, advanced stage, and positive peritoneal cytology. Receiver operating characteristic curve analyses showed that L1CAM did not significantly improve risk stratification algorithms based on traditional risk factors. Intraoperative tum...Continue Reading

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Citations

May 21, 2020·Journal of Clinical Medicine·Marco Giordano, Ugo Cavallaro

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