Glossary Term
Microsatellite Instability
PCR TermsEN
Definition
Genomic instability associated with the presence of hypermutability in specific genetic marker regions resulting from defective DNA mismatch repair.
Extended Notes
Source: National Cancer Institute, NCI Thesaurus 26.09d, C36318. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-20. No individual clinical interpretation or human reviewer is asserted.
Also Known As
Microsatellite InstabilityMicrosatellite Instability PositiveMicrosatellite Instability PresentMSIMSI PositiveMSI Present