Lynch syndrome endometrial cancer risk and surveillance: what is the approach and when is risk-reducing hysterectomy considered?

• A. Endometrial cancer risk is negligible; no surveillance
• B. Endometrial cancer risk is elevated; surveillance is recommended and risk-reducing hysterectomy may be considered after childbearing
• C. Hysterectomy is always recommended at diagnosis
• D. Endometrial cancer risk is unrelated to syndrome

Answer: (B)

Endometrial cancer risk is elevated in Lynch syndrome because of mismatch repair gene mutations, so management focuses on proactive detection and on reducing risk after fertility is no longer a concern. Surveillance typically involves regular assessment with endometrial sampling (biopsy) to detect hyperplasia or cancer at an early, treatable stage, and many centers discuss ongoing evaluation starting in early adulthood for carriers. Transvaginal ultrasound may be used as an adjunct, but the biopsy-based approach is the key tool for detecting endometrial pathology in this high-risk group. Because the cancer risk remains throughout life, many clinicians also discuss risk-reducing hysterectomy with bilateral salpingo-oophorectomy after completing childbearing. This timing reflects weighing the substantial ongoing risk against the implications of removing the uterus and ovaries, including the onset of menopause and fertility considerations. In short, the risk is indeed elevated, surveillance is advised, and risk-reducing hysterectomy is an option after childbearing is finished.