U.S. flag

An official website of the United States government

GTR Home > Conditions/Phenotypes > Lynch syndrome

Lynch syndrome

Summary

Excerpted from the GeneReview: Lynch Syndrome
Lynch syndrome is characterized by an increased risk for colorectal cancer (CRC) and cancers of the endometrium, ovary, stomach, small bowel, urinary tract, biliary tract, brain (usually glioblastoma), skin (sebaceous adenomas, sebaceous carcinomas, and keratoacanthomas), pancreas, and prostate. Cancer risks and age of onset vary depending on the associated gene. Several other cancer types have been reported to occur in individuals with Lynch syndrome (e.g., breast, sarcomas, adrenocortical carcinoma). However, the data are not sufficient to demonstrate that the risk of developing these cancers is increased in individuals with Lynch syndrome.
Full text of GeneReview (by section):
Summary
Diagnosis
Clinical Characteristics
Genetically Related (Allelic) Disorders
Differential Diagnosis
Management
Genetic Counseling
Resources
Molecular Genetics
Chapter Notes
References
Authors:
Gregory Idos
Laura Valle
view full author information

Available tests

145 tests are in the database for this condition.

Check Related conditions for additional relevant tests.

Clinical tests (144 available)

Biochemical Genetics Tests

Molecular Genetics Tests

Research tests

Genes See tests for all associated and related genes

  • Also known as: COCA2, FCC2, HNPCC, HNPCC2, LYNCH2, MLH-1, MMRCS1, hMLH1, MLH1
    Summary: mutL homolog 1

  • Also known as: COCA1, FCC1, HNPCC, HNPCC1, LCFS2, LYNCH1, MMRCS2, MSH-2, hMSH2, MSH2
    Summary: mutS homolog 2

  • Also known as: GTBP, GTMBP, HNPCC5, HSAP, LYNCH5, MMRCS3, MSH-6, p160, MSH6
    Summary: mutS homolog 6

  • Also known as: HNPCC4, LYNCH4, MLH4, MMRCS4, PMS-2, PMS2CL, PMSL2, PMS2
    Summary: PMS1 homolog 2, mismatch repair system component

Reviews

Suggested reading

Clinical resources

Practice guidelines

  • NCCN, 2023
    NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®) Colon Cancer, 2023
  • NICE, 2021
    UK NICE Guideline NG151, Colorectal cancer, 2021
  • NICE, 2020
    UK NICE Diagnostics Guidance DG42, Testing strategies for Lynch syndrome in people with endometrial cancer, 2020
  • SGO, 2014
    Society of Gynecologic Oncology (SGO) Clinical Practice Statement: Screening for Lynch Syndrome in Endometrial Cancer
  • ACMG ACT, 2012
    American College of Medical Genetics and Genomics Family History ACT Sheet, Colon Cancer (Asymptomatic), 2012

Molecular resources

Consumer resources

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.