Concordance between location of self-reported site of musculoskeletal pain in psoriasis and findings of inflammation by ultrasound

Patients with psoriasis (PsO) often report muskuloskeletal (MSK) pain without clinical findings of inflammation. Ultrasound (US) is more sensitive than clinical evaluation in detecting synovitis and enthesitis, and we have previously found that patients with PsO and pain more often have US signs of inflammation in joints and entheses than patients without pain (1), indicating possible psoriatic arthritis (PsA). Whether the area of reported pain in these patients correspond to inflammation by US has not yet been investigated.