Lynch Syndrome

Lynch syndrome is the most common inherited condition that increases the risk of colorectal and endometrial cancer. Understanding if you are at risk is a crucial first step toward prevention and early detection.

What is Lynch Syndrome?

Lynch syndrome, formerly known as hereditary non-polyposis colorectal cancer (HNPCC), is a genetic condition passed down through families that significantly increases the lifetime risk for several types of cancer.

The condition is caused by a mutation in one of several genes responsible for DNA mismatch repair. These genes act like a spell-checker for your DNA, fixing errors that occur when cells divide. When one of these genes doesn't work correctly, errors can build up in the DNA, which can lead to the uncontrolled cell growth that causes cancer.

People with Lynch syndrome aren’t born with cancer but have a significantly higher risk of developing it, often at a younger age.

Associated Cancer Risks

While Lynch syndrome is most strongly associated with colorectal cancer, it also elevates the risk for several other cancers. The most common include:

  • Colorectal cancer
  • Uterine cancer
  • Ovarian cancer
  • Stomach cancer

Understanding these risks is crucial for creating a personalized monitoring plan that suits your needs.

Identifying Your Risk for Lynch Syndrome

The key to identifying Lynch syndrome is a thorough assessment of your personal and family health history. A pattern of specific cancers in your family could indicate a higher risk.

Key indicators include:

  • A personal or family history of colorectal or endometrial cancer diagnosed before age 50.
  • Multiple relatives on the same side of the family with a Lynch-associated cancer.
  • A family member who has had more than one type of Lynch-associated cancer.
  • A known Lynch syndrome mutation already identified in your family.

Diagnosis and Genetic Counseling

If your family history raises concerns, a formal evaluation can provide definitive answers.

The diagnostic path includes:

The process begins with a careful review of your personal and family medical history to identify any red flags for a hereditary cancer syndrome.

A simple blood or saliva test is used to analyze your DNA for mutations in the genes associated with Lynch syndrome.

If a mutation is found, a detailed, long-term plan for cancer screening and prevention will be developed and tailored specifically to you.

Managing Lynch Syndrome

The primary goal for managing Lynch syndrome is early detection and prevention. Armed with the knowledge of your genetic risk, proactive steps can be taken to find polyps or cancers at their earliest, most treatable stages.

Your personalized plan will likely include:

Instead of waiting until age 45, you will likely start colonoscopies much earlier and have them performed every one to two years.

Care will be coordinated to include regular screenings for other Lynch-associated cancers, such as upper endoscopies for stomach cancer and screening for endometrial and ovarian cancer.

In some cases, preventative surgery, such as a hysterectomy and oophorectomy (removal of the uterus and ovaries), may be discussed to lower cancer risk.

Find Care for Lynch Syndrome in Westlake or Brooklyn, OH

A diagnosis of Lynch syndrome affects the whole family and requires expert, compassionate navigation. The experienced gastroenterologists at North Shore Gastroenterology are here to provide the lifelong monitoring, genetic guidance, and advanced care you need.

Contact us today at (440) 808-1212 or request an appointment online to schedule a visit.