Fig. 1From: Single-cell sequencing reveals the immune microenvironment landscape related to anti-PD-1 resistance in metastatic colorectal cancer with high microsatellite instabilityEfficacy evaluation of MSI-H mCRC after first-line PD-1 monotherapy. A Flow chart for screening 23 patients receiving first-line PD-1 monotherapy. Images of primary and metastatic lesions pre- and post-immunotherapy are shown for (B) three resistant patients and (C) three sensitive patientsBack to article page