Key clinical point: Patients with psoriasis who showed ultrasound abnormalities in hand, knee, toe joints, and few other anatomical sites are more likely to progress to psoriatic arthritis (PsA).
Major finding: Hand joint power Doppler (PD) signals (grade 0 and ≥1), knee joint PD signals (grade 0 and ≥1), toe joint PD signals (grade 0 and ≥1), quadriceps tendon and patellar tendon enthesitis (all P < .001), wrist joint synovial thickening (grade 1-3; P = .001), and Achilles tendon and plantar aponeurosis enthesitis ( P = .007) were all significant risk predictors for PsA.
Study details: Findings are from a cross-sectional study including 852 patients with psoriasis but without PsA, 261 patients with PsA, and 86 healthy volunteers who underwent an ultrasound examination.
Disclosures: This study was funded by West China Hospital, West China Precision Medicine Industrial Technology Institutes, and Sichuan Provincial Science and Technology Project. The authors declared no conflict of interests.
Source: Wang Y et al. Dermatol Ther (Heidelb). 2021 (Dec 19). Doi: 10.1007/s13555-021-00663-0.