Abbrevations:
US: Ultra Sound
ULN: Upper Limit of Normal
ICPi: Immune Checkpoint Blockade Inhibition
UPCR: Urine Protein to Creatinine Ratio
ACPA: Anti Citrullinated Antibody
ANCA: Anti Neutrophil Cytoplasmic Antibody
CRP: C Reactive Protein
RF: Rheuma Factor