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Citation Information : Journal of Ultrasonography. Volume 15, Issue 61, Pages 196-207, DOI: https://doi.org/10.15557/JoU.2015.0017
License : (CC BY-SA 4.0)
Received Date : 05-May-2014 / Accepted: 14-July-2015 / Published Online: 13-September-2016
The pathologies of tendon and ligament attachments are called enthesopathies. Enthesitis is one of enthesopathies and it is considered a characteristic sign of rheumatic diseases from the spondyloarthritis group, including peripheral spondyloarthritis. Therefore, enthesitis has been included in a number of clinical classifi cations for diagnosing these diseases. Clinical diagnosis of enthesitis is based on rather non-specifi c clinical signs and results of laboratory tests. It is believed that imaging examinations might improve diagnosis, particularly because numerous papers prove that differentiating enthesitis from other enthesopathic processes is possible. On the other hand, a number of authors report the lack of specifi c signs in imaging as well as typical histological and immunological features that would enable confi rmation of clinical diagnosis of enthesitis. The first part of the publication presented theories on the etiopathogenesis of enthesitis (infl ammatory, mechanical, autoimmune and associated with the synovio-entheseal complex) as well as on the formation of enthesophytes (infl ammatory, molecular and mechanical). This paper – the second part of the article, is a review of the state-of-the-art on the ability of imaging examinations to diagnose enthesitis. It turns out that none of the enthesitis criteria used in imaging examinations is specifi c for infl ammation. As enthesitis may be the only symptom of early spondyloarthritis (particularly in patients with absent HLA-B27 antigen), the lack of its unambiguous picture in ultrasound and magnetic resonance imaging prompts the search for other signs characteristic of spondyloarthritis and more specific features in imaging in order to make a diagnosis as early as possible.
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