Tetsuya Ito, Tatsuro Yamaguchi, Kensuke Kumamoto, Okihide Suzuki, Noriyasu Chika, Satoru Kawakami, Tomonori Nagai, Tsukasa Igawa, Kenji Fujiyoshi, Yoshito Akagi, Tomio Arai, Kiwamu Akagi, Hidetaka Eguchi, Yasushi Okazaki, Hideyuki Ishida
BACKGROUND: Based on molecular characteristics, deficient DNA mismatch repair (dMMR) solid tumors are largely divided into three categories: somatically MLH1-hypermethylated tumors, Lynch syndrome (LS)-associated tumors, and Lynch-like syndrome (LLS)-associated tumors. The incidence of each of these conditions and the corresponding pathogenic genes related to LLS remain elusive. METHODS: We identified dMMR tumors in 3609 tumors from 9 different solid organs, including colorectal cancer, gastric cancer, small-bowel cancer, endometrial cancer, ovarian cancer, upper urinary tract cancer, urinary bladder cancer, prostate cancer, and sebaceous tumor, and comprehensively summarized the characterization of dMMR tumors...
April 14, 2024: International Journal of Clinical Oncology