US synovitis and/or bone erosions in the three joints included in the ‘clinical-US short’ model (wrist, knee and MTP5 joint) in three different CCP+ at risk individuals. (A) Synovial hypertrophy (asterisks) and power Doppler (red spots) in the radiocarpal (rc) and intercarpal (ic) joints. (B) The presence of synovial hypertrophy (asterisks) and minimal power Doppler signal (red spots) in the lateral recess of the knee joint. (C) A large bone erosion (arrow) in the lateral aspect of the fifth metatarsal head (mh). f: femur