Pan-cancer prevalence of microsatellite instability and Lynch syndrome in India
This pan-cancer study of 519 Indian patients reveals a 25.6% prevalence of microsatellite instability/mismatch repair deficiency, identifying a high burden of Lynch syndrome (49.6% of MSI-high/MMRd cases) driven largely by specific *MLH1* founder variants, thereby validating a tumor-first screening approach to improve detection and management across diverse cancer types in India.