MP18-10 CHRONIC INFLAMMATION-DERIVED IMMUNOSUPPRESSIVE STATUS INCLUDING MYELOID DERIVED SUPPRESSOR CELL, T CELL EXHAUSTION OR PD-L1 EXPRESSION IS COMMON IN NON-CLEAR CELL RENAL CELL CARCINOMA

INTRODUCTION AND OBJECTIVE:Non-clear cell renal cell carcinoma (ncRCC) is a rare entity with heterogeneous pathology, and few information about the effect of immune checkpoint inhibitor (ICI). We a...