Elias Chandran, Medical Oncologist at National Cancer Institute shared on X:

“Excited to share our meta-analysis of Mismatch repair deficiency (dMMR) and microsatellite instability-high (MSI-H) in Urothelial Carcinoma (UC)! These occur more in Upper Tract Urothelial Carcinoma (UTUC) than bladder cancer. And similar to rectal cancer, occur more in localized stage, and may predict ICB sensitivity and chemoresistance.”

Further Reading.
Source: Elias Chandran/X