Doppler enthesitis: a potential useful outcome in the assessment of axial spondyloarthritis and psoriatic arthritis.

PD enthesitis was found in the majority of patients with active axSpA and PsA, independent of axial or peripheral affectation. Both MASEI and OMERACT PD definitions were useful in detecting active enthesitis. These findings support the usefulness of a PD US evaluation of entheses in the assessment of axSpA and PsA. Key Points • PD enthesitis is a very common finding in patients with active axSpA and PsA • Both MASEI and OMERACT PD definitions are useful to detect active enthesitis • US enthesitis may reveal information in axSpA and PsA.