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Updated: Aug 16, 2026

Measuring Psoriasis Severity at Home
Published on: March 1, 2024
Acitretin-induced enthesitis in a patient with psoriatic arthritis
Véronique Vincent1, Laurent Zabraniecki, Olivier Loustau
1Rheumatology Department, CHU Purpan Teaching Hospital, place du Docteur Baylac, 31059 Toulouse, France. fournie.b@chu-toulouse.fr
Abstract:
A patient with psoriatic arthritis and cutaneous psoriasis took acitretin for 10 years to treat his skin lesions. Radiographs disclosed exuberant ossifications in several entheses. Their features were not typical for psoriatic arthritis but were consistent with acitretin-induced hyperostosis. Retinoids are known to induce hyperostosis, most notably when they are used in high dosages and over long periods. The concomitant presence of two conditions affecting the entheses may explain the exuberant nature of the ossifications in our patient.
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