Rare MSI-H hepatoid adenocarcinoma of the colon with BRAF V600E mutation achieving long-term disease-free survival after adjuvant envafolimab: a case report
Case presentationMicrosatellite instability-high (MSI-H) or mismatch repair-deficient (dMMR) colorectal cancer (CRC) is characterized by high tumor mutational burden and strong immunogenicity, making it responsive to immune checkpoint inhibitors. Hepat…