Prevalence and Prognosis of Lynch Syndrome and Sporadic Mismatch Repair Deficiency in Endometrial Cancer.
Cathalijne CB Post, Ellen Stelloo, Vincent THBM Smit, Dina Ruano, Carli M Tops, Lisa Vermij, Tessa A Rutten, Ina M Jürgenliemk-Schulz, Ludy CHW Lutgens, Jan J Jobsen, Remi A Nout, Emma J Crosbie, Melanie E Powell, Linda Mileshkin, Alexandra Leary, Paul Bessette, Hein Putter, Stephanie M de Boer, Nanda Horeweg, Maartje Nielsen Show all
J Natl Cancer Inst | Published : 2021
BACKGROUND: Standard screening of endometrial cancer (EC) for Lynch syndrome (LS) is gaining traction; however, the prognostic impact of an underlying hereditary etiology is unknown. We established the prevalence, prognosis, and subsequent primary cancer incidence of patients with LS-associated EC in relation to sporadic mismatch repair deficient (MMRd)-EC in the large combined Post Operative Radiation Therapy in Endometrial Carcinoma-1, -2, and -3 trial cohort. METHODS: After MMR-immunohistochemistry, MLH1-promoter methylation testing, and next-generation sequencing, tumors were classified into 3 groups according to the molecular cause of their MMRd-EC. Kaplan-Meier method, log-rank test, a..View full abstract