On TMA A there was a modest trend between CAIX and CD8 either overall (− 0.0677; − 0.2233, 0.0877) and after stratifying by tumor (0.02; − 0.1180, 0.1619) or stroma (− 0.0162; − 0.1731, 0.1382). Here, CA9 is linked to neoplasm.