Related Experiment Video For Li-Fraumeni syndrome
Updated: Jul 7, 2026

Deficient Pms2, ERCC1, Ku86, CcOI in Field Defects During Progression to Colon Cancer
Published on: July 28, 2010
Early-onset Colorectal Cancer in a Patient with Li-Fraumeni Syndrome: A Case Series and Literature Review
Kazuki Sekiguchi1, Iori Motoo2, Takayuki Ando2
1Center for Clinical Training, Toyama University Hospital, Japan.
Abstract:
Screening for colorectal cancer (CRC) in individuals with Li-Fraumeni syndrome (LFS) typically recommends initiating colonoscopy at 25 years old. We herein report a case of LFS with dual CRC and liver metastasis diagnosed before the recommended screening age. A 17-year-old boy with a history of sarcoma underwent colonoscopy, revealing 2 advanced CRCs: neuroendocrine carcinoma in the descending colon and adenocarcinoma in the rectum, each displaying distinct histological features. In addition, a TP53 missense mutation (p.His193Arg) was detected by a detailed genetic examination. LFS is associated with a heightened risk of rapid progression to invasive carcinomas due to TP53 variants. Therefore, earlier initiation of colonoscopy screening may be necessary for patients with LFS.
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